NLDD Series: Step-down (Buck) Constant Current LED Driver ; NHDD Series: DC Input Constant Current LED Driver

NLDD-1400HW DC/DC LED driver MEAN WELL NLDD-1400HW is a DC/DC step-down constant-current LED driver rated at 1400 mA, with a 6–46 VDC output operating window and 10–56 VDC input. This wire-style model provides PWM dimming and remote on/off control in a fully encapsulated package for Class III lighting applications (SELV). Select the LED string within its voltage window and keep its operating voltage at least 4 V below the actual input voltage. Download MEAN WELL NLDD-H Datasheet (PDF)Combined catalog pages 1–6; NLDD-H revision 2024-10-16. Output and model selection Complete model / construction NLDD-1400HW / NLDD-H series. HW denotes wire style. The output current is selected by the complete model code. Rated output current 1400 mA constant current. The family offers separate 350, 500, 700, 1050, 1200 and 1400 mA models; these are model choices, not an adjustment range for this unit. LED output-voltage window 6–46 VDC, subject to the input-to-output voltage margin. Typical current accuracy ±5% at 48 VDC input. Maximum ripple and noise 350 mVp-p. Measurement uses 20 MHz bandwidth and a 12-inch twisted pair terminated with a 0.1 µF capacitor. Switching frequency 200 kHz. This is the converter switching frequency, separate from the PWM control frequency. Input and performance DC input-voltage range 10–56 VDC operating range; 59 VDC maximum. The maximum value does not extend the normal operating range. Full-load input current 1360 mA at 48 VDC input, as listed in the specification table. No-load input current 5 mA, as listed in the specification table. Maximum efficiency 95% at full load and 36 VDC or 48 VDC input. Efficiency varies with the operating point; use this model-specific table value and its stated conditions. Reference measurement conditions Unless otherwise specified: normal 48 VDC input, rated load, +25°C and 70% RH ambient. Dimming and operating control PWM application levels The application drawing uses 5 V high and 0 V low control levels at 100–1000 Hz. PWM current characteristic The output follows PWM current pulses. The illustrated duty/current characteristic is marked ±5% typical; its labeled duty scale begins at 10%. Use the stated on/off thresholds for shutdown rather than treating the plot as a guaranteed continuous low-end dimming range. Shutdown input current Maximum 2 mA with PWM dimming OFF at 48 VDC input. Protection and environment Short-circuit protection Regulated at rated current. The short-circuit condition can be sustained, with automatic recovery after the fault is removed. Overtemperature protection Typical detection at Tj 165°C on the main control IC, IC1. Output shuts down and recovers automatically after the temperature falls. This is an internal junction threshold, not the allowable ambient temperature. Cooling and ambient limits Free-air convection. The common specification lists −40 to +50°C subject to derating. For this model, the full-load curve runs from −40 to +45°C and ends at +45°C. The high-current curve does not authorize full-load operation to +50°C. Maximum operating case temperature 90°C. Humidity and storage Operating humidity: 20–90% RH, non-condensing. Storage: −40 to +85°C and 10–95% RH. Temperature coefficient ±0.03%/°C. Vibration 10–500 Hz, 2G; 10 minutes per cycle, 60 minutes along each of the X, Y and Z axes. Connections and construction Overall dimensions 32.1 × 20.5 × 12.5 mm (L × W × H). Drawing tolerance: ±1 mm. Power and control wire positions 2 = −Vin, black; 11 = −Vout, blue; 14 = +Vout, yellow; 21 = PWM DIM, white; 23 = +Vin, red. Other positions are NC. Do not connect −Vin to −Vout. Wire specification UL1569 22 AWG leads, 100 ±10 mm long; stripped ends 5 ±2 mm. Follow the numbered wire-style drawing for the connection orientation. Case and encapsulation Fully encapsulated plastic case rated UL94-V0. The specification table identifies the potting material as epoxy (UL94-V0), while the overview calls it silicone. Confirm the actual compound with the manufacturer if material identity is important to the application. Soldering limits Wave soldering: 265°C for 5 seconds maximum. Manual soldering: 390°C for 3 seconds maximum. Unit mass 18 g for this wire-style model, explicitly listed as unit weight in the catalog. Installation requirements Installation reference scope The catalogue links the general LED installation manual, whose family list does not explicitly name NLDD. Use this model's DC input, output and control diagrams; the reference does not establish AC wiring or circuit-breaker ratings for this module. DC wiring separation Do not connect -Vin to -Vout. Do not connect this unit's output to its own input or to the output of another power source. Step-down operating boundary The catalogue specifies an output at least 4 V below the DC input, within the model-specific output-voltage range. Select the LED forward voltage and input together. PWM reference and unused control Apply PWM relative to -Vin at 100-1000 Hz. Leave the control input open when unused; ON is above 2.5 V up to 5 V or open, and OFF is below 0.8 V or shorted to -Vin. Exact control connection This wire version uses position 21 for PWM DIM. Use the exact model drawing rather than assuming all current ratings have the same control-pin position. System EMC verification This module is a component of the final system. Verify EMC with the complete device and use a model-appropriate additional EMI filter if required. Safety and reference information Safety approvals LVD BS EN/EN 61347-1, BS EN/EN 61347-2-13, IEC 61347, and EAC TP TC 004 approved. The series is designed for Class III applications (SELV). EMC references BS EN/EN 55015 and BS EN/EN 61547 compliance. Immunity: BS EN/EN 61000-4-2, -3, -4, -6 and -8, light-industry level; EAC TP TC 020. MTBF 29984.3 thousand hours minimum, Telcordia SR-332 (Bellcore); 2881.6 thousand hours minimum, MIL-HDBK-217F at 25°C. Applications and warranty Applications include DC battery-powered lighting, portable lighting, DC 48 V track lighting and DC 24 V landscape lighting, within the electrical and environmental limits above. The catalog states a 3-year manufacturer warranty, subject to the manufacturer’s warranty statement. Packing reference Catalog packing alternatives include 15 units per tube and 40 units per tray. These logistics quantities do not change the separately specified unit mass or establish the quantity supplied with an individual order. Download MEAN WELL LED Installation Manual (Catalog Reference)

Read more less

NHDD-40-100W DC/DC constant-current LED driver MEAN WELL NHDD-40-100W is a lead-wire DC/DC constant-current LED driver for a nominal 380 VDC lighting bus. It supplies 100 mA from a 360–420 VDC input. Select the LED-string voltage so that the input-to-output drop stays between 40 and 80 VDC. The catalog lists 35 W and 350 V as typical output values; these figures must not override that required voltage-drop window. Download MEAN WELL NHDD-40 Datasheet (PDF)Combined catalog pages 7–12; NHDD-40 revision 2024-10-16. Model and electrical selection Complete model / construction NHDD-40-100W; NHDD-40 series. W identifies the lead-wire form. Fully encapsulated plastic housing; epoxy potting material rated UL94-V0. Application / conversion DC/DC constant-current driver for a DC 380 V bus lighting system. It is a step-down application: the LED-string voltage must remain below the actual DC input by the stated amount. Rated current / tolerance 100 mA output; current tolerance ±15%. Typical output ratings 35 W typical output power and 350 VDC typical output voltage, as listed in the catalog. The series code 40 is not a replacement for the stated 35 W typical value. Required voltage difference Input voltage minus output voltage must be at least 40 VDC and no more than 80 VDC. The total LED forward voltage must meet the same condition. The catalog warns that an incorrect voltage difference can cause unexpectedly high output current. Typical-value selection limit The catalog also lists 380 VDC as typical input. Pairing 380 V input with 350 V output gives only a 30 V drop, which does not meet the required 40–80 V window. Do not select this pair as an approved operating point; confirm the intended LED load and operating point with the manufacturer. At 380 V input, the stated drop rule corresponds to 300–340 V output. Current ripple 40% maximum at rated output current. DC input range 360–420 VDC; typical input 380 VDC. Apply the voltage-drop window and thermal limits together. Typical efficiency 94%, measured at 100 mA / 380 VDC per the catalog efficiency note; this test label does not remove the required input-to-output voltage difference. Typical DC input current 0.1 A at 380 VDC input. Setup time 500 ms at 380 VDC, measured at the first cold start. Repeated ON/OFF switching may increase the setup time. Maximum shutdown input current 2 mA with PWM dimming OFF at 380 VDC input. PWM control and protection PWM / remote ON-OFF frequency 100–1000 Hz. Connect the control signal using the model-specific PWM DIM and return connections. Enable / disable levels Power ON: leave the PWM DIM input open, or apply a high level above 1.5 V and up to 5 VDC. Power OFF: apply a level below 0.9 VDC or short the PWM input to its control return. PWM output characteristic During PWM operation the output current becomes pulsed. The diagram uses a 5 V high level and 0 V low level, with the typical duty/current characteristic marked ±5% tolerance. This is separate from the ±15% output-current tolerance. Switch control The illustrated switch across the PWM control connections gives 100% output when open and DIM OFF when closed. Leave the dimming input open if unused. Short-circuit protection Hiccup mode; recovers automatically after the fault is removed. Overtemperature protection Typical trip temperature Tj = 150°C at IC1, the main control IC. Output shuts down and recovers automatically after the temperature falls. This junction-temperature trip is not the allowed ambient or case temperature. Input undervoltage / reverse polarity The driver shuts down when input is below 359 V. The specification states no damage for reverse polarity; connect the input with the correct polarity in normal use. Thermal and environmental limits Cooling / ambient temperature Fanless free-air convection. In horizontal mounting, the page 9 ambient-temperature curve shows 100% load from −30 to +40°C and ends at +40°C; do not extend the operating limit beyond that boundary. Case temperature The separate page 9 case-temperature curve shows 100% load from −30 to +90°C in horizontal mounting. The specification lists +90°C as the maximum case temperature. Meet both the ambient and case limits. Temperature-label clarification The working-temperature table labels −30 to +40°C as Tcase, while the separate plots identify that interval as ambient Ta and show case temperature up to +90°C. Retain the +40°C ambient limit and +90°C case maximum; confirm the table-label discrepancy with the manufacturer for the installation. Working humidity 20–90% RH, non-condensing. Storage temperature / humidity −40 to +80°C; 10–95% RH. Temperature coefficient ±0.03%/°C over 0–50°C. Vibration 10–500 Hz, 2G; 10 minutes per cycle, 60 minutes along each of the X, Y and Z axes. Altitude derating For this fanless model, reduce the permitted ambient temperature by 3.5°C per 1000 m above 2000 m altitude. Dimensions and wiring Dimensions 32.1 × 20.5 × 12.5 mm (L × W × H). Mechanical drawing tolerance: ±1 mm. Power / LED / control connections Wire positions: 1 −Vout blue; 2 +Vout yellow; 3 +Vin red; 4 −Vin black; 5 PWM DIM+ white; 6 PWM DIM− black. Other positions are N.C. Keep the two black return wires assigned to their specified functions. Wire / pin geometry All leads are UL1569 22 AWG. The drawing shows 75 ±10 mm for the upper input/control lead group and 100 ±10 mm for the LED-output lead group; stripped ends are 5 ±2 mm. Return wiring Do not connect −Vin to −Vout. Use the dedicated PWM DIM− black lead at position 6 as the control return with PWM DIM+; the drawing recommends a separate dimming return from −Vin. Soldering limits Wave soldering: 265°C for 5 seconds maximum. Manual soldering: 390°C for 3 seconds maximum. Application and related equipment Lighting applications Panel, indoor LED, recessed, linear, DC-house and industrial lighting, within the driver’s input, output and thermal limits. DC-bus system examples The page 11 examples use an external UHP-1500-380E AC/DC supply for the DC bus and a DAP-04 for PWM control from the DALI bus. One arrangement shows a DLP-04L DALI-bus power supply and DALI dimmer; another shows a DLC-02 DALI-2 controller with the DALI dimmer. These are separate system components shown in application examples, not included accessories or a built-in DALI interface on the NHDD driver. Confirm each component and connection for the final system. Driver-on-board option The catalog offers a manufacturer-supported driver-on-board (DOB) solution including circuit information and key components such as a driver IC or choke. Contact MEAN WELL for details; no complete order code for those components is specified in this catalog. Luminaire integration The application note states that MEAN WELL PBM partners can support DC 380 V LED luminaires. Confirm the specific luminaire and system arrangement with the manufacturer. Installation guidance Installation reference scope The catalogue links the general LED installation manual, whose family list does not explicitly name NHDD. Use this model's DC input, output and control diagrams; the reference does not establish AC wiring or circuit-breaker ratings for this module. Input, output and dimming return Do not connect -Vin to -Vout. Follow the NHDD pin or lead-wire drawing. The catalogue recommends using a separate PWM DIM- connection from the -Vin wiring; the wire version provides a separate black DIM- lead. Input-to-LED voltage difference The catalogue lists 350 V output and 35 W as typical values, but also requires the input voltage to exceed the total LED forward voltage by at least 40 V and no more than 80 V to prevent unexpectedly high output current. Do not assume that 380 V input with 350 V output meets this joint condition; confirm the intended input and LED string with MEAN WELL. PWM and on-off boundary Use the PWM DIM+ and DIM- control diagram at 100-1000 Hz. ON is above 1.5 V up to 5 V or with the input open; OFF is below 0.9 V or shorted. The switch diagram gives open = 100% ON and closed = OFF. System control scope The DALI and DALI-2 devices in the application diagram are external system components. The NHDD module itself exposes PWM/remote on-off control; the diagram does not establish a built-in DALI interface for this module. System EMC verification This module is a component of the final system. Verify EMC with the complete device and use a model-appropriate additional EMI filter if required. Safety and reference data Safety standards LVD BS EN/EN 61347 and EAC TP TC 004 approved, as listed in the catalog. EMC emission / immunity Emission: BS EN/EN 55015 and EAC TP TC 020. Immunity: BS EN/EN 61000-4-2, -3, -4, -6 and -8, light-industry level, criteria A; EAC TP TC 020. Complete-equipment EMC This driver is a component of the final system. Test EMI with the complete device. If additional filtering is needed, use the applicable EMC test report and the manufacturer’s EMI guidance to determine the filter circuit. MTBF 15362.0 thousand hours minimum, Telcordia SR-332 (Bellcore); 2779.1 thousand hours minimum, MIL-HDBK-217F at 25°C. Unit mass / warranty 18 g for this lead-wire form, explicitly listed in the WEIGHT field; this is a catalog unit reference. The catalog states a 5-year manufacturer warranty, subject to the manufacturer’s terms. Measurement conditions Unless otherwise specified: 380 VDC input, rated current and 25°C ambient. Typical values retain their stated test conditions and must be used together with the operating limits. Download MEAN WELL LED Installation Manual (Catalog Reference)

Read more less

NHDD-40-100 DC/DC constant-current LED driver MEAN WELL NHDD-40-100 is a pin-mounted DC/DC constant-current LED driver for a nominal 380 VDC lighting bus. It supplies 100 mA from a 360–420 VDC input. Select the LED-string voltage so that the input-to-output drop stays between 40 and 80 VDC. The catalog lists 35 W and 350 V as typical output values; these figures must not override that required voltage-drop window. Download MEAN WELL NHDD-40 Datasheet (PDF)Combined catalog pages 7–12; NHDD-40 revision 2024-10-16. Model and electrical selection Complete model / construction NHDD-40-100; NHDD-40 series. The blank output-style suffix identifies the pin-mounted form. Fully encapsulated plastic housing; epoxy potting material rated UL94-V0. Application / conversion DC/DC constant-current driver for a DC 380 V bus lighting system. It is a step-down application: the LED-string voltage must remain below the actual DC input by the stated amount. Rated current / tolerance 100 mA output; current tolerance ±15%. Typical output ratings 35 W typical output power and 350 VDC typical output voltage, as listed in the catalog. The series code 40 is not a replacement for the stated 35 W typical value. Required voltage difference Input voltage minus output voltage must be at least 40 VDC and no more than 80 VDC. The total LED forward voltage must meet the same condition. The catalog warns that an incorrect voltage difference can cause unexpectedly high output current. Typical-value selection limit The catalog also lists 380 VDC as typical input. Pairing 380 V input with 350 V output gives only a 30 V drop, which does not meet the required 40–80 V window. Do not select this pair as an approved operating point; confirm the intended LED load and operating point with the manufacturer. At 380 V input, the stated drop rule corresponds to 300–340 V output. Current ripple 40% maximum at rated output current. DC input range 360–420 VDC; typical input 380 VDC. Apply the voltage-drop window and thermal limits together. Typical efficiency 94%, measured at 100 mA / 380 VDC per the catalog efficiency note; this test label does not remove the required input-to-output voltage difference. Typical DC input current 0.1 A at 380 VDC input. Setup time 500 ms at 380 VDC, measured at the first cold start. Repeated ON/OFF switching may increase the setup time. Maximum shutdown input current 2 mA with PWM dimming OFF at 380 VDC input. PWM control and protection PWM / remote ON-OFF frequency 100–1000 Hz. Connect the control signal using the model-specific PWM DIM and return connections. Enable / disable levels Power ON: leave the PWM DIM input open, or apply a high level above 1.5 V and up to 5 VDC. Power OFF: apply a level below 0.9 VDC or short the PWM input to its control return. PWM output characteristic During PWM operation the output current becomes pulsed. The diagram uses a 5 V high level and 0 V low level, with the typical duty/current characteristic marked ±5% tolerance. This is separate from the ±15% output-current tolerance. Switch control The illustrated switch across the PWM control connections gives 100% output when open and DIM OFF when closed. Leave the dimming input open if unused. Short-circuit protection Hiccup mode; recovers automatically after the fault is removed. Overtemperature protection Typical trip temperature Tj = 150°C at IC1, the main control IC. Output shuts down and recovers automatically after the temperature falls. This junction-temperature trip is not the allowed ambient or case temperature. Input undervoltage / reverse polarity The driver shuts down when input is below 359 V. The specification states no damage for reverse polarity; connect the input with the correct polarity in normal use. Thermal and environmental limits Cooling / ambient temperature Fanless free-air convection. In horizontal mounting, the page 9 ambient-temperature curve shows 100% load from −30 to +40°C and ends at +40°C; do not extend the operating limit beyond that boundary. Case temperature The separate page 9 case-temperature curve shows 100% load from −30 to +90°C in horizontal mounting. The specification lists +90°C as the maximum case temperature. Meet both the ambient and case limits. Temperature-label clarification The working-temperature table labels −30 to +40°C as Tcase, while the separate plots identify that interval as ambient Ta and show case temperature up to +90°C. Retain the +40°C ambient limit and +90°C case maximum; confirm the table-label discrepancy with the manufacturer for the installation. Working humidity 20–90% RH, non-condensing. Storage temperature / humidity −40 to +80°C; 10–95% RH. Temperature coefficient ±0.03%/°C over 0–50°C. Vibration 10–500 Hz, 2G; 10 minutes per cycle, 60 minutes along each of the X, Y and Z axes. Altitude derating For this fanless model, reduce the permitted ambient temperature by 3.5°C per 1000 m above 2000 m altitude. Dimensions and wiring Dimensions 32.1 × 20.5 × 12.5 mm (L × W × H). Mechanical drawing tolerance: ±1 mm. Power / LED / control connections Bottom-view pins: 1 −Vout for LED negative; 2 +Vout for LED positive; 3 +Vin; 4 −Vin; 5 PWM DIM+. Other positions are N.C. The pin-style table does not provide a separate pin 6. Wire / pin geometry Pin diameter 0.60 mm; projection 3.81 mm. The drawing states a pin tolerance of ±0.5 mm. Use the numbered bottom-view drawing and its spacing dimensions for the mating board. Return wiring Do not connect −Vin to −Vout. For the PWM return, the drawing recommends a separate wire taken from −Vin; use that control return with PWM DIM+ and follow the pin-style drawing. Soldering limits Wave soldering: 265°C for 5 seconds maximum. Manual soldering: 390°C for 3 seconds maximum. Application and related equipment Lighting applications Panel, indoor LED, recessed, linear, DC-house and industrial lighting, within the driver’s input, output and thermal limits. DC-bus system examples The page 11 examples use an external UHP-1500-380E AC/DC supply for the DC bus and a DAP-04 for PWM control from the DALI bus. One arrangement shows a DLP-04L DALI-bus power supply and DALI dimmer; another shows a DLC-02 DALI-2 controller with the DALI dimmer. These are separate system components shown in application examples, not included accessories or a built-in DALI interface on the NHDD driver. Confirm each component and connection for the final system. Driver-on-board option The catalog offers a manufacturer-supported driver-on-board (DOB) solution including circuit information and key components such as a driver IC or choke. Contact MEAN WELL for details; no complete order code for those components is specified in this catalog. Luminaire integration The application note states that MEAN WELL PBM partners can support DC 380 V LED luminaires. Confirm the specific luminaire and system arrangement with the manufacturer. Installation guidance Installation reference scope The catalogue links the general LED installation manual, whose family list does not explicitly name NHDD. Use this model's DC input, output and control diagrams; the reference does not establish AC wiring or circuit-breaker ratings for this module. Input, output and dimming return Do not connect -Vin to -Vout. Follow the NHDD pin or lead-wire drawing. The catalogue recommends using a separate PWM DIM- connection from the -Vin wiring; the wire version provides a separate black DIM- lead. Input-to-LED voltage difference The catalogue lists 350 V output and 35 W as typical values, but also requires the input voltage to exceed the total LED forward voltage by at least 40 V and no more than 80 V to prevent unexpectedly high output current. Do not assume that 380 V input with 350 V output meets this joint condition; confirm the intended input and LED string with MEAN WELL. PWM and on-off boundary Use the PWM DIM+ and DIM- control diagram at 100-1000 Hz. ON is above 1.5 V up to 5 V or with the input open; OFF is below 0.9 V or shorted. The switch diagram gives open = 100% ON and closed = OFF. System control scope The DALI and DALI-2 devices in the application diagram are external system components. The NHDD module itself exposes PWM/remote on-off control; the diagram does not establish a built-in DALI interface for this module. System EMC verification This module is a component of the final system. Verify EMC with the complete device and use a model-appropriate additional EMI filter if required. Safety and reference data Safety standards LVD BS EN/EN 61347 and EAC TP TC 004 approved, as listed in the catalog. EMC emission / immunity Emission: BS EN/EN 55015 and EAC TP TC 020. Immunity: BS EN/EN 61000-4-2, -3, -4, -6 and -8, light-industry level, criteria A; EAC TP TC 020. Complete-equipment EMC This driver is a component of the final system. Test EMI with the complete device. If additional filtering is needed, use the applicable EMC test report and the manufacturer’s EMI guidance to determine the filter circuit. MTBF 15362.0 thousand hours minimum, Telcordia SR-332 (Bellcore); 2779.1 thousand hours minimum, MIL-HDBK-217F at 25°C. Unit mass / warranty 15.6 g for this pin-mounted form, explicitly listed in the WEIGHT field; this is a catalog unit reference. The catalog states a 5-year manufacturer warranty, subject to the manufacturer’s terms. Measurement conditions Unless otherwise specified: 380 VDC input, rated current and 25°C ambient. Typical values retain their stated test conditions and must be used together with the operating limits. Download MEAN WELL LED Installation Manual (Catalog Reference)

Read more less

NLDD-1200HW DC/DC LED driver MEAN WELL NLDD-1200HW is a DC/DC step-down constant-current LED driver rated at 1200 mA, with a 6–46 VDC output operating window and 10–56 VDC input. This wire-style model provides PWM dimming and remote on/off control in a fully encapsulated package for Class III lighting applications (SELV). Select the LED string within its voltage window and keep its operating voltage at least 4 V below the actual input voltage. Download MEAN WELL NLDD-H Datasheet (PDF)Combined catalog pages 1–6; NLDD-H revision 2024-10-16. Output and model selection Complete model / construction NLDD-1200HW / NLDD-H series. HW denotes wire style. The output current is selected by the complete model code. Rated output current 1200 mA constant current. The family offers separate 350, 500, 700, 1050, 1200 and 1400 mA models; these are model choices, not an adjustment range for this unit. LED output-voltage window 6–46 VDC, subject to the input-to-output voltage margin. Typical current accuracy ±5% at 48 VDC input. Maximum ripple and noise 350 mVp-p. Measurement uses 20 MHz bandwidth and a 12-inch twisted pair terminated with a 0.1 µF capacitor. Switching frequency 200 kHz. This is the converter switching frequency, separate from the PWM control frequency. Input and performance DC input-voltage range 10–56 VDC operating range; 59 VDC maximum. The maximum value does not extend the normal operating range. Full-load input current 1200 mA at 48 VDC input, as listed in the specification table. No-load input current 5 mA, as listed in the specification table. Maximum efficiency 95% at full load and 36 VDC or 48 VDC input. Efficiency varies with the operating point; use this model-specific table value and its stated conditions. Reference measurement conditions Unless otherwise specified: normal 48 VDC input, rated load, +25°C and 70% RH ambient. Dimming and operating control PWM application levels The application drawing uses 5 V high and 0 V low control levels at 100–1000 Hz. PWM current characteristic The output follows PWM current pulses. The illustrated duty/current characteristic is marked ±5% typical; its labeled duty scale begins at 10%. Use the stated on/off thresholds for shutdown rather than treating the plot as a guaranteed continuous low-end dimming range. Shutdown input current Maximum 2 mA with PWM dimming OFF at 48 VDC input. Protection and environment Short-circuit protection Regulated at rated current. The short-circuit condition can be sustained, with automatic recovery after the fault is removed. Overtemperature protection Typical detection at Tj 165°C on the main control IC, IC1. Output shuts down and recovers automatically after the temperature falls. This is an internal junction threshold, not the allowable ambient temperature. Cooling and ambient limits Free-air convection. The common specification lists −40 to +50°C subject to derating. For this model, the full-load curve runs from −40 to +45°C and ends at +45°C. The high-current curve does not authorize full-load operation to +50°C. Maximum operating case temperature 90°C. Humidity and storage Operating humidity: 20–90% RH, non-condensing. Storage: −40 to +85°C and 10–95% RH. Temperature coefficient ±0.03%/°C. Vibration 10–500 Hz, 2G; 10 minutes per cycle, 60 minutes along each of the X, Y and Z axes. Connections and construction Overall dimensions 32.1 × 20.5 × 12.5 mm (L × W × H). Drawing tolerance: ±1 mm. Power and control wire positions 2 = −Vin, black; 11 = −Vout, blue; 14 = +Vout, yellow; 21 = PWM DIM, white; 23 = +Vin, red. Other positions are NC. Do not connect −Vin to −Vout. Wire specification UL1569 22 AWG leads, 100 ±10 mm long; stripped ends 5 ±2 mm. Follow the numbered wire-style drawing for the connection orientation. Case and encapsulation Fully encapsulated plastic case rated UL94-V0. The specification table identifies the potting material as epoxy (UL94-V0), while the overview calls it silicone. Confirm the actual compound with the manufacturer if material identity is important to the application. Soldering limits Wave soldering: 265°C for 5 seconds maximum. Manual soldering: 390°C for 3 seconds maximum. Unit mass 18 g for this wire-style model, explicitly listed as unit weight in the catalog. Installation requirements Installation reference scope The catalogue links the general LED installation manual, whose family list does not explicitly name NLDD. Use this model's DC input, output and control diagrams; the reference does not establish AC wiring or circuit-breaker ratings for this module. DC wiring separation Do not connect -Vin to -Vout. Do not connect this unit's output to its own input or to the output of another power source. Step-down operating boundary The catalogue specifies an output at least 4 V below the DC input, within the model-specific output-voltage range. Select the LED forward voltage and input together. PWM reference and unused control Apply PWM relative to -Vin at 100-1000 Hz. Leave the control input open when unused; ON is above 2.5 V up to 5 V or open, and OFF is below 0.8 V or shorted to -Vin. Exact control connection This wire version uses position 21 for PWM DIM. Use the exact model drawing rather than assuming all current ratings have the same control-pin position. System EMC verification This module is a component of the final system. Verify EMC with the complete device and use a model-appropriate additional EMI filter if required. Safety and reference information Safety approvals LVD BS EN/EN 61347-1, BS EN/EN 61347-2-13, IEC 61347, and EAC TP TC 004 approved. The series is designed for Class III applications (SELV). EMC references BS EN/EN 55015 and BS EN/EN 61547 compliance. Immunity: BS EN/EN 61000-4-2, -3, -4, -6 and -8, light-industry level; EAC TP TC 020. MTBF 29984.3 thousand hours minimum, Telcordia SR-332 (Bellcore); 2881.6 thousand hours minimum, MIL-HDBK-217F at 25°C. Applications and warranty Applications include DC battery-powered lighting, portable lighting, DC 48 V track lighting and DC 24 V landscape lighting, within the electrical and environmental limits above. The catalog states a 3-year manufacturer warranty, subject to the manufacturer’s warranty statement. Packing reference Catalog packing alternatives include 15 units per tube and 40 units per tray. These logistics quantities do not change the separately specified unit mass or establish the quantity supplied with an individual order. Download MEAN WELL LED Installation Manual (Catalog Reference)

Read more less

NLDD-1050HW DC/DC LED driver MEAN WELL NLDD-1050HW is a DC/DC step-down constant-current LED driver rated at 1050 mA, with a 6–52 VDC output operating window and 10–56 VDC input. This wire-style model provides PWM dimming and remote on/off control in a fully encapsulated package for Class III lighting applications (SELV). Select the LED string within its voltage window and keep its operating voltage at least 4 V below the actual input voltage. Download MEAN WELL NLDD-H Datasheet (PDF)Combined catalog pages 1–6; NLDD-H revision 2024-10-16. Output and model selection Complete model / construction NLDD-1050HW / NLDD-H series. HW denotes wire style. The output current is selected by the complete model code. Rated output current 1050 mA constant current. The family offers separate 350, 500, 700, 1050, 1200 and 1400 mA models; these are model choices, not an adjustment range for this unit. LED output-voltage window 6–52 VDC, subject to the input-to-output voltage margin. Typical current accuracy ±5% at 48 VDC input. Maximum ripple and noise 350 mVp-p. Measurement uses 20 MHz bandwidth and a 12-inch twisted pair terminated with a 0.1 µF capacitor. Switching frequency 200 kHz. This is the converter switching frequency, separate from the PWM control frequency. Input and performance DC input-voltage range 10–56 VDC operating range; 59 VDC maximum. The maximum value does not extend the normal operating range. Full-load input current 1100 mA at 48 VDC input, as listed in the specification table. No-load input current 5 mA, as listed in the specification table. Maximum efficiency 96% at full load and 36 VDC or 48 VDC input. Efficiency varies with the operating point; use this model-specific table value and its stated conditions. Reference measurement conditions Unless otherwise specified: normal 48 VDC input, rated load, +25°C and 70% RH ambient. Dimming and operating control PWM application levels The application drawing uses 5 V high and 0 V low control levels at 100–1000 Hz. PWM current characteristic The output follows PWM current pulses. The illustrated duty/current characteristic is marked ±5% typical; its labeled duty scale begins at 10%. Use the stated on/off thresholds for shutdown rather than treating the plot as a guaranteed continuous low-end dimming range. Shutdown input current Maximum 2 mA with PWM dimming OFF at 48 VDC input. Protection and environment Short-circuit protection Regulated at rated current. The short-circuit condition can be sustained, with automatic recovery after the fault is removed. Overtemperature protection Typical detection at Tj 165°C on the main control IC, IC1. Output shuts down and recovers automatically after the temperature falls. This is an internal junction threshold, not the allowable ambient temperature. Cooling and ambient limits Free-air convection. The common specification lists −40 to +50°C subject to derating. For this model, the full-load curve runs from −40 to +50°C and ends at +50°C. Respect the case-temperature and other operating limits as well. Maximum operating case temperature 90°C. Humidity and storage Operating humidity: 20–90% RH, non-condensing. Storage: −40 to +85°C and 10–95% RH. Temperature coefficient ±0.03%/°C. Vibration 10–500 Hz, 2G; 10 minutes per cycle, 60 minutes along each of the X, Y and Z axes. Connections and construction Overall dimensions 32.1 × 20.5 × 12.5 mm (L × W × H). Drawing tolerance: ±1 mm. Power and control wire positions 2 = −Vin, black; 11 = −Vout, blue; 14 = +Vout, yellow; 21 = PWM DIM, white; 23 = +Vin, red. Other positions are NC. Do not connect −Vin to −Vout. Wire specification UL1569 22 AWG leads, 100 ±10 mm long; stripped ends 5 ±2 mm. Follow the numbered wire-style drawing for the connection orientation. Case and encapsulation Fully encapsulated plastic case rated UL94-V0. The specification table identifies the potting material as epoxy (UL94-V0), while the overview calls it silicone. Confirm the actual compound with the manufacturer if material identity is important to the application. Soldering limits Wave soldering: 265°C for 5 seconds maximum. Manual soldering: 390°C for 3 seconds maximum. Unit mass 18 g for this wire-style model, explicitly listed as unit weight in the catalog. Installation requirements Installation reference scope The catalogue links the general LED installation manual, whose family list does not explicitly name NLDD. Use this model's DC input, output and control diagrams; the reference does not establish AC wiring or circuit-breaker ratings for this module. DC wiring separation Do not connect -Vin to -Vout. Do not connect this unit's output to its own input or to the output of another power source. Step-down operating boundary The catalogue specifies an output at least 4 V below the DC input, within the model-specific output-voltage range. Select the LED forward voltage and input together. PWM reference and unused control Apply PWM relative to -Vin at 100-1000 Hz. Leave the control input open when unused; ON is above 2.5 V up to 5 V or open, and OFF is below 0.8 V or shorted to -Vin. Exact control connection This wire version uses position 21 for PWM DIM. Use the exact model drawing rather than assuming all current ratings have the same control-pin position. System EMC verification This module is a component of the final system. Verify EMC with the complete device and use a model-appropriate additional EMI filter if required. Safety and reference information Safety approvals LVD BS EN/EN 61347-1, BS EN/EN 61347-2-13, IEC 61347, and EAC TP TC 004 approved. The series is designed for Class III applications (SELV). EMC references BS EN/EN 55015 and BS EN/EN 61547 compliance. Immunity: BS EN/EN 61000-4-2, -3, -4, -6 and -8, light-industry level; EAC TP TC 020. MTBF 29984.3 thousand hours minimum, Telcordia SR-332 (Bellcore); 2881.6 thousand hours minimum, MIL-HDBK-217F at 25°C. Applications and warranty Applications include DC battery-powered lighting, portable lighting, DC 48 V track lighting and DC 24 V landscape lighting, within the electrical and environmental limits above. The catalog states a 3-year manufacturer warranty, subject to the manufacturer’s warranty statement. Packing reference Catalog packing alternatives include 15 units per tube and 40 units per tray. These logistics quantities do not change the separately specified unit mass or establish the quantity supplied with an individual order. Download MEAN WELL LED Installation Manual (Catalog Reference)

Read more less

NLDD-700HW DC/DC LED driver MEAN WELL NLDD-700HW is a DC/DC step-down constant-current LED driver rated at 700 mA, with a 6–52 VDC output operating window and 10–56 VDC input. This wire-style model provides PWM dimming and remote on/off control in a fully encapsulated package for Class III lighting applications (SELV). Select the LED string within its voltage window and keep its operating voltage at least 4 V below the actual input voltage. Download MEAN WELL NLDD-H Datasheet (PDF)Combined catalog pages 1–6; NLDD-H revision 2024-10-16. Output and model selection Complete model / construction NLDD-700HW / NLDD-H series. HW denotes wire style. The output current is selected by the complete model code. Rated output current 700 mA constant current. The family offers separate 350, 500, 700, 1050, 1200 and 1400 mA models; these are model choices, not an adjustment range for this unit. LED output-voltage window 6–52 VDC, subject to the input-to-output voltage margin. Typical current accuracy ±5% at 48 VDC input. Maximum ripple and noise 200 mVp-p. Measurement uses 20 MHz bandwidth and a 12-inch twisted pair terminated with a 0.1 µF capacitor. Switching frequency 200 kHz. This is the converter switching frequency, separate from the PWM control frequency. Input and performance DC input-voltage range 10–56 VDC operating range; 59 VDC maximum. The maximum value does not extend the normal operating range. Full-load input current 700 mA at 48 VDC input, as listed in the specification table. No-load input current 5 mA, as listed in the specification table. Maximum efficiency 96% at full load and 36 VDC or 48 VDC input. Efficiency varies with the operating point; use this model-specific table value and its stated conditions. Reference measurement conditions Unless otherwise specified: normal 48 VDC input, rated load, +25°C and 70% RH ambient. Dimming and operating control PWM application levels The application drawing uses 5 V high and 0 V low control levels at 100–1000 Hz. PWM current characteristic The output follows PWM current pulses. The illustrated duty/current characteristic is marked ±5% typical; its labeled duty scale begins at 10%. Use the stated on/off thresholds for shutdown rather than treating the plot as a guaranteed continuous low-end dimming range. Shutdown input current Maximum 2 mA with PWM dimming OFF at 48 VDC input. Protection and environment Short-circuit protection Regulated at rated current. The short-circuit condition can be sustained, with automatic recovery after the fault is removed. Overtemperature protection Typical detection at Tj 165°C on the main control IC, IC1. Output shuts down and recovers automatically after the temperature falls. This is an internal junction threshold, not the allowable ambient temperature. Cooling and ambient limits Free-air convection. The common specification lists −40 to +50°C subject to derating. For this model, the full-load curve runs from −40 to +50°C and ends at +50°C. Respect the case-temperature and other operating limits as well. Maximum operating case temperature 90°C. Humidity and storage Operating humidity: 20–90% RH, non-condensing. Storage: −40 to +85°C and 10–95% RH. Temperature coefficient ±0.03%/°C. Vibration 10–500 Hz, 2G; 10 minutes per cycle, 60 minutes along each of the X, Y and Z axes. Connections and construction Overall dimensions 32.1 × 20.5 × 12.5 mm (L × W × H). Drawing tolerance: ±1 mm. Power and control wire positions 2 = −Vin, black; 11 = −Vout, blue; 14 = +Vout, yellow; 21 = PWM DIM, white; 23 = +Vin, red. Other positions are NC. Do not connect −Vin to −Vout. Wire specification UL1569 22 AWG leads, 100 ±10 mm long; stripped ends 5 ±2 mm. Follow the numbered wire-style drawing for the connection orientation. Case and encapsulation Fully encapsulated plastic case rated UL94-V0. The specification table identifies the potting material as epoxy (UL94-V0), while the overview calls it silicone. Confirm the actual compound with the manufacturer if material identity is important to the application. Soldering limits Wave soldering: 265°C for 5 seconds maximum. Manual soldering: 390°C for 3 seconds maximum. Unit mass 18 g for this wire-style model, explicitly listed as unit weight in the catalog. Installation requirements Installation reference scope The catalogue links the general LED installation manual, whose family list does not explicitly name NLDD. Use this model's DC input, output and control diagrams; the reference does not establish AC wiring or circuit-breaker ratings for this module. DC wiring separation Do not connect -Vin to -Vout. Do not connect this unit's output to its own input or to the output of another power source. Step-down operating boundary The catalogue specifies an output at least 4 V below the DC input, within the model-specific output-voltage range. Select the LED forward voltage and input together. PWM reference and unused control Apply PWM relative to -Vin at 100-1000 Hz. Leave the control input open when unused; ON is above 2.5 V up to 5 V or open, and OFF is below 0.8 V or shorted to -Vin. Exact control connection This wire version uses position 21 for PWM DIM. Use the exact model drawing rather than assuming all current ratings have the same control-pin position. System EMC verification This module is a component of the final system. Verify EMC with the complete device and use a model-appropriate additional EMI filter if required. Safety and reference information Safety approvals LVD BS EN/EN 61347-1, BS EN/EN 61347-2-13, IEC 61347, and EAC TP TC 004 approved. The series is designed for Class III applications (SELV). EMC references BS EN/EN 55015 and BS EN/EN 61547 compliance. Immunity: BS EN/EN 61000-4-2, -3, -4, -6 and -8, light-industry level; EAC TP TC 020. MTBF 29984.3 thousand hours minimum, Telcordia SR-332 (Bellcore); 2881.6 thousand hours minimum, MIL-HDBK-217F at 25°C. Applications and warranty Applications include DC battery-powered lighting, portable lighting, DC 48 V track lighting and DC 24 V landscape lighting, within the electrical and environmental limits above. The catalog states a 3-year manufacturer warranty, subject to the manufacturer’s warranty statement. Packing reference Catalog packing alternatives include 15 units per tube and 40 units per tray. These logistics quantities do not change the separately specified unit mass or establish the quantity supplied with an individual order. Download MEAN WELL LED Installation Manual (Catalog Reference)

Read more less

NLDD-500HW DC/DC LED driver MEAN WELL NLDD-500HW is a DC/DC step-down constant-current LED driver rated at 500 mA, with a 6–52 VDC output operating window and 10–56 VDC input. This wire-style model provides PWM dimming and remote on/off control in a fully encapsulated package for Class III lighting applications (SELV). Select the LED string within its voltage window and keep its operating voltage at least 4 V below the actual input voltage. Download MEAN WELL NLDD-H Datasheet (PDF)Combined catalog pages 1–6; NLDD-H revision 2024-10-16. Output and model selection Complete model / construction NLDD-500HW / NLDD-H series. HW denotes wire style. The output current is selected by the complete model code. Rated output current 500 mA constant current. The family offers separate 350, 500, 700, 1050, 1200 and 1400 mA models; these are model choices, not an adjustment range for this unit. LED output-voltage window 6–52 VDC, subject to the input-to-output voltage margin. Typical current accuracy ±5% at 48 VDC input. Maximum ripple and noise 150 mVp-p. Measurement uses 20 MHz bandwidth and a 12-inch twisted pair terminated with a 0.1 µF capacitor. Switching frequency 200 kHz. This is the converter switching frequency, separate from the PWM control frequency. Input and performance DC input-voltage range 10–56 VDC operating range; 59 VDC maximum. The maximum value does not extend the normal operating range. Full-load input current 490 mA at 48 VDC input, as listed in the specification table. No-load input current 5 mA, as listed in the specification table. Maximum efficiency 96% at full load and 36 VDC or 48 VDC input. Efficiency varies with the operating point; use this model-specific table value and its stated conditions. Reference measurement conditions Unless otherwise specified: normal 48 VDC input, rated load, +25°C and 70% RH ambient. Dimming and operating control PWM application levels The application drawing uses 5 V high and 0 V low control levels at 100–1000 Hz. PWM current characteristic The output follows PWM current pulses. The illustrated duty/current characteristic is marked ±5% typical; its labeled duty scale begins at 10%. Use the stated on/off thresholds for shutdown rather than treating the plot as a guaranteed continuous low-end dimming range. Shutdown input current Maximum 2 mA with PWM dimming OFF at 48 VDC input. Protection and environment Short-circuit protection Regulated at rated current. The short-circuit condition can be sustained, with automatic recovery after the fault is removed. Overtemperature protection Typical detection at Tj 165°C on the main control IC, IC1. Output shuts down and recovers automatically after the temperature falls. This is an internal junction threshold, not the allowable ambient temperature. Cooling and ambient limits Free-air convection. The common specification lists −40 to +50°C subject to derating. For this model, the full-load curve runs from −40 to +50°C and ends at +50°C. Respect the case-temperature and other operating limits as well. Maximum operating case temperature 90°C. Humidity and storage Operating humidity: 20–90% RH, non-condensing. Storage: −40 to +85°C and 10–95% RH. Temperature coefficient ±0.03%/°C. Vibration 10–500 Hz, 2G; 10 minutes per cycle, 60 minutes along each of the X, Y and Z axes. Connections and construction Overall dimensions 32.1 × 20.5 × 12.5 mm (L × W × H). Drawing tolerance: ±1 mm. Power and control wire positions 2 = −Vin, black; 11 = −Vout, blue; 14 = +Vout, yellow; 21 = PWM DIM, white; 23 = +Vin, red. Other positions are NC. Do not connect −Vin to −Vout. Wire specification UL1569 22 AWG leads, 100 ±10 mm long; stripped ends 5 ±2 mm. Follow the numbered wire-style drawing for the connection orientation. Case and encapsulation Fully encapsulated plastic case rated UL94-V0. The specification table identifies the potting material as epoxy (UL94-V0), while the overview calls it silicone. Confirm the actual compound with the manufacturer if material identity is important to the application. Soldering limits Wave soldering: 265°C for 5 seconds maximum. Manual soldering: 390°C for 3 seconds maximum. Unit mass 18 g for this wire-style model, explicitly listed as unit weight in the catalog. Installation requirements Installation reference scope The catalogue links the general LED installation manual, whose family list does not explicitly name NLDD. Use this model's DC input, output and control diagrams; the reference does not establish AC wiring or circuit-breaker ratings for this module. DC wiring separation Do not connect -Vin to -Vout. Do not connect this unit's output to its own input or to the output of another power source. Step-down operating boundary The catalogue specifies an output at least 4 V below the DC input, within the model-specific output-voltage range. Select the LED forward voltage and input together. PWM reference and unused control Apply PWM relative to -Vin at 100-1000 Hz. Leave the control input open when unused; ON is above 2.5 V up to 5 V or open, and OFF is below 0.8 V or shorted to -Vin. Exact control connection This wire version uses position 21 for PWM DIM. Use the exact model drawing rather than assuming all current ratings have the same control-pin position. System EMC verification This module is a component of the final system. Verify EMC with the complete device and use a model-appropriate additional EMI filter if required. Safety and reference information Safety approvals LVD BS EN/EN 61347-1, BS EN/EN 61347-2-13, IEC 61347, and EAC TP TC 004 approved. The series is designed for Class III applications (SELV). EMC references BS EN/EN 55015 and BS EN/EN 61547 compliance. Immunity: BS EN/EN 61000-4-2, -3, -4, -6 and -8, light-industry level; EAC TP TC 020. MTBF 29984.3 thousand hours minimum, Telcordia SR-332 (Bellcore); 2881.6 thousand hours minimum, MIL-HDBK-217F at 25°C. Applications and warranty Applications include DC battery-powered lighting, portable lighting, DC 48 V track lighting and DC 24 V landscape lighting, within the electrical and environmental limits above. The catalog states a 3-year manufacturer warranty, subject to the manufacturer’s warranty statement. Packing reference Catalog packing alternatives include 15 units per tube and 40 units per tray. These logistics quantities do not change the separately specified unit mass or establish the quantity supplied with an individual order. Download MEAN WELL LED Installation Manual (Catalog Reference)

Read more less

NLDD-350HW DC/DC LED driver MEAN WELL NLDD-350HW is a DC/DC step-down constant-current LED driver rated at 350 mA, with a 6–52 VDC output operating window and 10–56 VDC input. This wire-style model provides PWM dimming and remote on/off control in a fully encapsulated package for Class III lighting applications (SELV). Select the LED string within its voltage window and keep its operating voltage at least 4 V below the actual input voltage. Download MEAN WELL NLDD-H Datasheet (PDF)Combined catalog pages 1–6; NLDD-H revision 2024-10-16. Output and model selection Complete model / construction NLDD-350HW / NLDD-H series. HW denotes wire style. The output current is selected by the complete model code. Rated output current 350 mA constant current. The family offers separate 350, 500, 700, 1050, 1200 and 1400 mA models; these are model choices, not an adjustment range for this unit. LED output-voltage window 6–52 VDC, subject to the input-to-output voltage margin. Typical current accuracy ±5% at 48 VDC input. Maximum ripple and noise 150 mVp-p. Measurement uses 20 MHz bandwidth and a 12-inch twisted pair terminated with a 0.1 µF capacitor. Switching frequency 200 kHz. This is the converter switching frequency, separate from the PWM control frequency. Input and performance DC input-voltage range 10–56 VDC operating range; 59 VDC maximum. The maximum value does not extend the normal operating range. Full-load input current 350 mA at 48 VDC input, as listed in the specification table. No-load input current 5 mA, as listed in the specification table. Maximum efficiency 96% at full load and 36 VDC or 48 VDC input. Efficiency varies with the operating point; use this model-specific table value and its stated conditions. Reference measurement conditions Unless otherwise specified: normal 48 VDC input, rated load, +25°C and 70% RH ambient. Dimming and operating control PWM application levels The application drawing uses 5 V high and 0 V low control levels at 100–1000 Hz. PWM current characteristic The output follows PWM current pulses. The illustrated duty/current characteristic is marked ±5% typical; its labeled duty scale begins at 10%. Use the stated on/off thresholds for shutdown rather than treating the plot as a guaranteed continuous low-end dimming range. Shutdown input current Maximum 2 mA with PWM dimming OFF at 48 VDC input. Protection and environment Short-circuit protection Regulated at rated current. The short-circuit condition can be sustained, with automatic recovery after the fault is removed. Overtemperature protection Typical detection at Tj 165°C on the main control IC, IC1. Output shuts down and recovers automatically after the temperature falls. This is an internal junction threshold, not the allowable ambient temperature. Cooling and ambient limits Free-air convection. The common specification lists −40 to +50°C subject to derating. For this model, the full-load curve runs from −40 to +50°C and ends at +50°C. Respect the case-temperature and other operating limits as well. Maximum operating case temperature 90°C. Humidity and storage Operating humidity: 20–90% RH, non-condensing. Storage: −40 to +85°C and 10–95% RH. Temperature coefficient ±0.03%/°C. Vibration 10–500 Hz, 2G; 10 minutes per cycle, 60 minutes along each of the X, Y and Z axes. Connections and construction Overall dimensions 32.1 × 20.5 × 12.5 mm (L × W × H). Drawing tolerance: ±1 mm. Power and control wire positions 2 = −Vin, black; 11 = −Vout, blue; 14 = +Vout, yellow; 21 = PWM DIM, white; 23 = +Vin, red. Other positions are NC. Do not connect −Vin to −Vout. Wire specification UL1569 22 AWG leads, 100 ±10 mm long; stripped ends 5 ±2 mm. Follow the numbered wire-style drawing for the connection orientation. Case and encapsulation Fully encapsulated plastic case rated UL94-V0. The specification table identifies the potting material as epoxy (UL94-V0), while the overview calls it silicone. Confirm the actual compound with the manufacturer if material identity is important to the application. Soldering limits Wave soldering: 265°C for 5 seconds maximum. Manual soldering: 390°C for 3 seconds maximum. Unit mass 18 g for this wire-style model, explicitly listed as unit weight in the catalog. Installation requirements Installation reference scope The catalogue links the general LED installation manual, whose family list does not explicitly name NLDD. Use this model's DC input, output and control diagrams; the reference does not establish AC wiring or circuit-breaker ratings for this module. DC wiring separation Do not connect -Vin to -Vout. Do not connect this unit's output to its own input or to the output of another power source. Step-down operating boundary The catalogue specifies an output at least 4 V below the DC input, within the model-specific output-voltage range. Select the LED forward voltage and input together. PWM reference and unused control Apply PWM relative to -Vin at 100-1000 Hz. Leave the control input open when unused; ON is above 2.5 V up to 5 V or open, and OFF is below 0.8 V or shorted to -Vin. Exact control connection This wire version uses position 21 for PWM DIM. Use the exact model drawing rather than assuming all current ratings have the same control-pin position. System EMC verification This module is a component of the final system. Verify EMC with the complete device and use a model-appropriate additional EMI filter if required. Safety and reference information Safety approvals LVD BS EN/EN 61347-1, BS EN/EN 61347-2-13, IEC 61347, and EAC TP TC 004 approved. The series is designed for Class III applications (SELV). EMC references BS EN/EN 55015 and BS EN/EN 61547 compliance. Immunity: BS EN/EN 61000-4-2, -3, -4, -6 and -8, light-industry level; EAC TP TC 020. MTBF 29984.3 thousand hours minimum, Telcordia SR-332 (Bellcore); 2881.6 thousand hours minimum, MIL-HDBK-217F at 25°C. Applications and warranty Applications include DC battery-powered lighting, portable lighting, DC 48 V track lighting and DC 24 V landscape lighting, within the electrical and environmental limits above. The catalog states a 3-year manufacturer warranty, subject to the manufacturer’s warranty statement. Packing reference Catalog packing alternatives include 15 units per tube and 40 units per tray. These logistics quantities do not change the separately specified unit mass or establish the quantity supplied with an individual order. Download MEAN WELL LED Installation Manual (Catalog Reference)

Read more less

NLDD-1400H DC/DC LED driver MEAN WELL NLDD-1400H is a DC/DC step-down constant-current LED driver rated at 1400 mA, with a 6–46 VDC output operating window and 10–56 VDC input. This pin-style model provides PWM dimming and remote on/off control in a fully encapsulated package for Class III lighting applications (SELV). Select the LED string within its voltage window and keep its operating voltage at least 4 V below the actual input voltage. Download MEAN WELL NLDD-H Datasheet (PDF)Combined catalog pages 1–6; NLDD-H revision 2024-10-16. Output and model selection Complete model / construction NLDD-1400H / NLDD-H series. H denotes pin style. The output current is selected by the complete model code. Rated output current 1400 mA constant current. The family offers separate 350, 500, 700, 1050, 1200 and 1400 mA models; these are model choices, not an adjustment range for this unit. LED output-voltage window 6–46 VDC, subject to the input-to-output voltage margin. Typical current accuracy ±5% at 48 VDC input. Maximum ripple and noise 350 mVp-p. Measurement uses 20 MHz bandwidth and a 12-inch twisted pair terminated with a 0.1 µF capacitor. Switching frequency 200 kHz. This is the converter switching frequency, separate from the PWM control frequency. Input and performance DC input-voltage range 10–56 VDC operating range; 59 VDC maximum. The maximum value does not extend the normal operating range. Full-load input current 1360 mA at 48 VDC input, as listed in the specification table. No-load input current 5 mA, as listed in the specification table. Maximum efficiency 95% at full load and 36 VDC or 48 VDC input. Efficiency varies with the operating point; use this model-specific table value and its stated conditions. Reference measurement conditions Unless otherwise specified: normal 48 VDC input, rated load, +25°C and 70% RH ambient. Dimming and operating control PWM application levels The application drawing uses 5 V high and 0 V low control levels at 100–1000 Hz. PWM current characteristic The output follows PWM current pulses. The illustrated duty/current characteristic is marked ±5% typical; its labeled duty scale begins at 10%. Use the stated on/off thresholds for shutdown rather than treating the plot as a guaranteed continuous low-end dimming range. Shutdown input current Maximum 2 mA with PWM dimming OFF at 48 VDC input. Protection and environment Short-circuit protection Regulated at rated current. The short-circuit condition can be sustained, with automatic recovery after the fault is removed. Overtemperature protection Typical detection at Tj 165°C on the main control IC, IC1. Output shuts down and recovers automatically after the temperature falls. This is an internal junction threshold, not the allowable ambient temperature. Cooling and ambient limits Free-air convection. The common specification lists −40 to +50°C subject to derating. For this model, the full-load curve runs from −40 to +45°C and ends at +45°C. The high-current curve does not authorize full-load operation to +50°C. Maximum operating case temperature 90°C. Humidity and storage Operating humidity: 20–90% RH, non-condensing. Storage: −40 to +85°C and 10–95% RH. Temperature coefficient ±0.03%/°C. Vibration 10–500 Hz, 2G; 10 minutes per cycle, 60 minutes along each of the X, Y and Z axes. Connections and construction Overall dimensions 32.1 × 20.5 × 12.5 mm (L × W × H). Drawing tolerance: ±1 mm. Power and control pin assignments Bottom view: pins 1 and 2 = −Vin; 11 and 12 = −Vout; 13 and 14 = +Vout; 21 = PWM DIM; 23 and 24 = +Vin. Other pins are NC. Do not connect −Vin to −Vout. Pin dimensions Pin diameter 0.60 mm; the catalog states a pin tolerance of ±0.5 mm. The side view shows 3.81 mm pin projection. Use the bottom-view drawing for the exact PCB footprint and pin orientation. Case and encapsulation Fully encapsulated plastic case rated UL94-V0. The specification table identifies the potting material as epoxy (UL94-V0), while the overview calls it silicone. Confirm the actual compound with the manufacturer if material identity is important to the application. Soldering limits Wave soldering: 265°C for 5 seconds maximum. Manual soldering: 390°C for 3 seconds maximum. Unit mass 15.6 g for this pin-style model, explicitly listed as unit weight in the catalog. Installation requirements Installation reference scope The catalogue links the general LED installation manual, whose family list does not explicitly name NLDD. Use this model's DC input, output and control diagrams; the reference does not establish AC wiring or circuit-breaker ratings for this module. DC wiring separation Do not connect -Vin to -Vout. Do not connect this unit's output to its own input or to the output of another power source. Step-down operating boundary The catalogue specifies an output at least 4 V below the DC input, within the model-specific output-voltage range. Select the LED forward voltage and input together. PWM reference and unused control Apply PWM relative to -Vin at 100-1000 Hz. Leave the control input open when unused; ON is above 2.5 V up to 5 V or open, and OFF is below 0.8 V or shorted to -Vin. Exact control connection This pin version uses position 21 for PWM DIM. Use the exact model drawing rather than assuming all current ratings have the same control-pin position. System EMC verification This module is a component of the final system. Verify EMC with the complete device and use a model-appropriate additional EMI filter if required. Safety and reference information Safety approvals LVD BS EN/EN 61347-1, BS EN/EN 61347-2-13, IEC 61347, and EAC TP TC 004 approved. The series is designed for Class III applications (SELV). EMC references BS EN/EN 55015 and BS EN/EN 61547 compliance. Immunity: BS EN/EN 61000-4-2, -3, -4, -6 and -8, light-industry level; EAC TP TC 020. MTBF 29984.3 thousand hours minimum, Telcordia SR-332 (Bellcore); 2881.6 thousand hours minimum, MIL-HDBK-217F at 25°C. Applications and warranty Applications include DC battery-powered lighting, portable lighting, DC 48 V track lighting and DC 24 V landscape lighting, within the electrical and environmental limits above. The catalog states a 3-year manufacturer warranty, subject to the manufacturer’s warranty statement. Packing reference Catalog packing alternatives include 15 units per tube and 40 units per tray. These logistics quantities do not change the separately specified unit mass or establish the quantity supplied with an individual order. Download MEAN WELL LED Installation Manual (Catalog Reference)

Read more less

NLDD-1200H DC/DC LED driver MEAN WELL NLDD-1200H is a DC/DC step-down constant-current LED driver rated at 1200 mA, with a 6–46 VDC output operating window and 10–56 VDC input. This pin-style model provides PWM dimming and remote on/off control in a fully encapsulated package for Class III lighting applications (SELV). Select the LED string within its voltage window and keep its operating voltage at least 4 V below the actual input voltage. Download MEAN WELL NLDD-H Datasheet (PDF)Combined catalog pages 1–6; NLDD-H revision 2024-10-16. Output and model selection Complete model / construction NLDD-1200H / NLDD-H series. H denotes pin style. The output current is selected by the complete model code. Rated output current 1200 mA constant current. The family offers separate 350, 500, 700, 1050, 1200 and 1400 mA models; these are model choices, not an adjustment range for this unit. LED output-voltage window 6–46 VDC, subject to the input-to-output voltage margin. Typical current accuracy ±5% at 48 VDC input. Maximum ripple and noise 350 mVp-p. Measurement uses 20 MHz bandwidth and a 12-inch twisted pair terminated with a 0.1 µF capacitor. Switching frequency 200 kHz. This is the converter switching frequency, separate from the PWM control frequency. Input and performance DC input-voltage range 10–56 VDC operating range; 59 VDC maximum. The maximum value does not extend the normal operating range. Full-load input current 1200 mA at 48 VDC input, as listed in the specification table. No-load input current 5 mA, as listed in the specification table. Maximum efficiency 95% at full load and 36 VDC or 48 VDC input. Efficiency varies with the operating point; use this model-specific table value and its stated conditions. Reference measurement conditions Unless otherwise specified: normal 48 VDC input, rated load, +25°C and 70% RH ambient. Dimming and operating control PWM application levels The application drawing uses 5 V high and 0 V low control levels at 100–1000 Hz. PWM current characteristic The output follows PWM current pulses. The illustrated duty/current characteristic is marked ±5% typical; its labeled duty scale begins at 10%. Use the stated on/off thresholds for shutdown rather than treating the plot as a guaranteed continuous low-end dimming range. Shutdown input current Maximum 2 mA with PWM dimming OFF at 48 VDC input. Protection and environment Short-circuit protection Regulated at rated current. The short-circuit condition can be sustained, with automatic recovery after the fault is removed. Overtemperature protection Typical detection at Tj 165°C on the main control IC, IC1. Output shuts down and recovers automatically after the temperature falls. This is an internal junction threshold, not the allowable ambient temperature. Cooling and ambient limits Free-air convection. The common specification lists −40 to +50°C subject to derating. For this model, the full-load curve runs from −40 to +45°C and ends at +45°C. The high-current curve does not authorize full-load operation to +50°C. Maximum operating case temperature 90°C. Humidity and storage Operating humidity: 20–90% RH, non-condensing. Storage: −40 to +85°C and 10–95% RH. Temperature coefficient ±0.03%/°C. Vibration 10–500 Hz, 2G; 10 minutes per cycle, 60 minutes along each of the X, Y and Z axes. Connections and construction Overall dimensions 32.1 × 20.5 × 12.5 mm (L × W × H). Drawing tolerance: ±1 mm. Power and control pin assignments Bottom view: pins 1 and 2 = −Vin; 11 and 12 = −Vout; 13 and 14 = +Vout; 21 = PWM DIM; 23 and 24 = +Vin. Other pins are NC. Do not connect −Vin to −Vout. Pin dimensions Pin diameter 0.60 mm; the catalog states a pin tolerance of ±0.5 mm. The side view shows 3.81 mm pin projection. Use the bottom-view drawing for the exact PCB footprint and pin orientation. Case and encapsulation Fully encapsulated plastic case rated UL94-V0. The specification table identifies the potting material as epoxy (UL94-V0), while the overview calls it silicone. Confirm the actual compound with the manufacturer if material identity is important to the application. Soldering limits Wave soldering: 265°C for 5 seconds maximum. Manual soldering: 390°C for 3 seconds maximum. Unit mass 15.6 g for this pin-style model, explicitly listed as unit weight in the catalog. Installation requirements Installation reference scope The catalogue links the general LED installation manual, whose family list does not explicitly name NLDD. Use this model's DC input, output and control diagrams; the reference does not establish AC wiring or circuit-breaker ratings for this module. DC wiring separation Do not connect -Vin to -Vout. Do not connect this unit's output to its own input or to the output of another power source. Step-down operating boundary The catalogue specifies an output at least 4 V below the DC input, within the model-specific output-voltage range. Select the LED forward voltage and input together. PWM reference and unused control Apply PWM relative to -Vin at 100-1000 Hz. Leave the control input open when unused; ON is above 2.5 V up to 5 V or open, and OFF is below 0.8 V or shorted to -Vin. Exact control connection This pin version uses position 21 for PWM DIM. Use the exact model drawing rather than assuming all current ratings have the same control-pin position. System EMC verification This module is a component of the final system. Verify EMC with the complete device and use a model-appropriate additional EMI filter if required. Safety and reference information Safety approvals LVD BS EN/EN 61347-1, BS EN/EN 61347-2-13, IEC 61347, and EAC TP TC 004 approved. The series is designed for Class III applications (SELV). EMC references BS EN/EN 55015 and BS EN/EN 61547 compliance. Immunity: BS EN/EN 61000-4-2, -3, -4, -6 and -8, light-industry level; EAC TP TC 020. MTBF 29984.3 thousand hours minimum, Telcordia SR-332 (Bellcore); 2881.6 thousand hours minimum, MIL-HDBK-217F at 25°C. Applications and warranty Applications include DC battery-powered lighting, portable lighting, DC 48 V track lighting and DC 24 V landscape lighting, within the electrical and environmental limits above. The catalog states a 3-year manufacturer warranty, subject to the manufacturer’s warranty statement. Packing reference Catalog packing alternatives include 15 units per tube and 40 units per tray. These logistics quantities do not change the separately specified unit mass or establish the quantity supplied with an individual order. Download MEAN WELL LED Installation Manual (Catalog Reference)

Read more less

NLDD-1050H DC/DC LED driver MEAN WELL NLDD-1050H is a DC/DC step-down constant-current LED driver rated at 1050 mA, with a 6–52 VDC output operating window and 10–56 VDC input. This pin-style model provides PWM dimming and remote on/off control in a fully encapsulated package for Class III lighting applications (SELV). Select the LED string within its voltage window and keep its operating voltage at least 4 V below the actual input voltage. Download MEAN WELL NLDD-H Datasheet (PDF)Combined catalog pages 1–6; NLDD-H revision 2024-10-16. Output and model selection Complete model / construction NLDD-1050H / NLDD-H series. H denotes pin style. The output current is selected by the complete model code. Rated output current 1050 mA constant current. The family offers separate 350, 500, 700, 1050, 1200 and 1400 mA models; these are model choices, not an adjustment range for this unit. LED output-voltage window 6–52 VDC, subject to the input-to-output voltage margin. Typical current accuracy ±5% at 48 VDC input. Maximum ripple and noise 350 mVp-p. Measurement uses 20 MHz bandwidth and a 12-inch twisted pair terminated with a 0.1 µF capacitor. Switching frequency 200 kHz. This is the converter switching frequency, separate from the PWM control frequency. Input and performance DC input-voltage range 10–56 VDC operating range; 59 VDC maximum. The maximum value does not extend the normal operating range. Full-load input current 1100 mA at 48 VDC input, as listed in the specification table. No-load input current 5 mA, as listed in the specification table. Maximum efficiency 96% at full load and 36 VDC or 48 VDC input. Efficiency varies with the operating point; use this model-specific table value and its stated conditions. Reference measurement conditions Unless otherwise specified: normal 48 VDC input, rated load, +25°C and 70% RH ambient. Dimming and operating control PWM application levels The application drawing uses 5 V high and 0 V low control levels at 100–1000 Hz. PWM current characteristic The output follows PWM current pulses. The illustrated duty/current characteristic is marked ±5% typical; its labeled duty scale begins at 10%. Use the stated on/off thresholds for shutdown rather than treating the plot as a guaranteed continuous low-end dimming range. Shutdown input current Maximum 2 mA with PWM dimming OFF at 48 VDC input. Protection and environment Short-circuit protection Regulated at rated current. The short-circuit condition can be sustained, with automatic recovery after the fault is removed. Overtemperature protection Typical detection at Tj 165°C on the main control IC, IC1. Output shuts down and recovers automatically after the temperature falls. This is an internal junction threshold, not the allowable ambient temperature. Cooling and ambient limits Free-air convection. The common specification lists −40 to +50°C subject to derating. For this model, the full-load curve runs from −40 to +50°C and ends at +50°C. Respect the case-temperature and other operating limits as well. Maximum operating case temperature 90°C. Humidity and storage Operating humidity: 20–90% RH, non-condensing. Storage: −40 to +85°C and 10–95% RH. Temperature coefficient ±0.03%/°C. Vibration 10–500 Hz, 2G; 10 minutes per cycle, 60 minutes along each of the X, Y and Z axes. Connections and construction Overall dimensions 32.1 × 20.5 × 12.5 mm (L × W × H). Drawing tolerance: ±1 mm. Power and control pin assignments Bottom view: pins 1 and 2 = −Vin; 11 and 12 = −Vout; 13 and 14 = +Vout; 22 = PWM DIM; 23 and 24 = +Vin. Other pins are NC. Do not connect −Vin to −Vout. Pin dimensions Pin diameter 0.60 mm; the catalog states a pin tolerance of ±0.5 mm. The side view shows 3.81 mm pin projection. Use the bottom-view drawing for the exact PCB footprint and pin orientation. Case and encapsulation Fully encapsulated plastic case rated UL94-V0. The specification table identifies the potting material as epoxy (UL94-V0), while the overview calls it silicone. Confirm the actual compound with the manufacturer if material identity is important to the application. Soldering limits Wave soldering: 265°C for 5 seconds maximum. Manual soldering: 390°C for 3 seconds maximum. Unit mass 15.6 g for this pin-style model, explicitly listed as unit weight in the catalog. Installation requirements Installation reference scope The catalogue links the general LED installation manual, whose family list does not explicitly name NLDD. Use this model's DC input, output and control diagrams; the reference does not establish AC wiring or circuit-breaker ratings for this module. DC wiring separation Do not connect -Vin to -Vout. Do not connect this unit's output to its own input or to the output of another power source. Step-down operating boundary The catalogue specifies an output at least 4 V below the DC input, within the model-specific output-voltage range. Select the LED forward voltage and input together. PWM reference and unused control Apply PWM relative to -Vin at 100-1000 Hz. Leave the control input open when unused; ON is above 2.5 V up to 5 V or open, and OFF is below 0.8 V or shorted to -Vin. Exact control connection This pin version uses position 22 for PWM DIM. Use the exact model drawing rather than assuming all current ratings have the same control-pin position. System EMC verification This module is a component of the final system. Verify EMC with the complete device and use a model-appropriate additional EMI filter if required. Safety and reference information Safety approvals LVD BS EN/EN 61347-1, BS EN/EN 61347-2-13, IEC 61347, and EAC TP TC 004 approved. The series is designed for Class III applications (SELV). EMC references BS EN/EN 55015 and BS EN/EN 61547 compliance. Immunity: BS EN/EN 61000-4-2, -3, -4, -6 and -8, light-industry level; EAC TP TC 020. MTBF 29984.3 thousand hours minimum, Telcordia SR-332 (Bellcore); 2881.6 thousand hours minimum, MIL-HDBK-217F at 25°C. Applications and warranty Applications include DC battery-powered lighting, portable lighting, DC 48 V track lighting and DC 24 V landscape lighting, within the electrical and environmental limits above. The catalog states a 3-year manufacturer warranty, subject to the manufacturer’s warranty statement. Packing reference Catalog packing alternatives include 15 units per tube and 40 units per tray. These logistics quantities do not change the separately specified unit mass or establish the quantity supplied with an individual order. Download MEAN WELL LED Installation Manual (Catalog Reference)

Read more less

NLDD-700H DC/DC LED driver MEAN WELL NLDD-700H is a DC/DC step-down constant-current LED driver rated at 700 mA, with a 6–52 VDC output operating window and 10–56 VDC input. This pin-style model provides PWM dimming and remote on/off control in a fully encapsulated package for Class III lighting applications (SELV). Select the LED string within its voltage window and keep its operating voltage at least 4 V below the actual input voltage. Download MEAN WELL NLDD-H Datasheet (PDF)Combined catalog pages 1–6; NLDD-H revision 2024-10-16. Output and model selection Complete model / construction NLDD-700H / NLDD-H series. H denotes pin style. The output current is selected by the complete model code. Rated output current 700 mA constant current. The family offers separate 350, 500, 700, 1050, 1200 and 1400 mA models; these are model choices, not an adjustment range for this unit. LED output-voltage window 6–52 VDC, subject to the input-to-output voltage margin. Typical current accuracy ±5% at 48 VDC input. Maximum ripple and noise 200 mVp-p. Measurement uses 20 MHz bandwidth and a 12-inch twisted pair terminated with a 0.1 µF capacitor. Switching frequency 200 kHz. This is the converter switching frequency, separate from the PWM control frequency. Input and performance DC input-voltage range 10–56 VDC operating range; 59 VDC maximum. The maximum value does not extend the normal operating range. Full-load input current 700 mA at 48 VDC input, as listed in the specification table. No-load input current 5 mA, as listed in the specification table. Maximum efficiency 96% at full load and 36 VDC or 48 VDC input. Efficiency varies with the operating point; use this model-specific table value and its stated conditions. Reference measurement conditions Unless otherwise specified: normal 48 VDC input, rated load, +25°C and 70% RH ambient. Dimming and operating control PWM application levels The application drawing uses 5 V high and 0 V low control levels at 100–1000 Hz. PWM current characteristic The output follows PWM current pulses. The illustrated duty/current characteristic is marked ±5% typical; its labeled duty scale begins at 10%. Use the stated on/off thresholds for shutdown rather than treating the plot as a guaranteed continuous low-end dimming range. Shutdown input current Maximum 2 mA with PWM dimming OFF at 48 VDC input. Protection and environment Short-circuit protection Regulated at rated current. The short-circuit condition can be sustained, with automatic recovery after the fault is removed. Overtemperature protection Typical detection at Tj 165°C on the main control IC, IC1. Output shuts down and recovers automatically after the temperature falls. This is an internal junction threshold, not the allowable ambient temperature. Cooling and ambient limits Free-air convection. The common specification lists −40 to +50°C subject to derating. For this model, the full-load curve runs from −40 to +50°C and ends at +50°C. Respect the case-temperature and other operating limits as well. Maximum operating case temperature 90°C. Humidity and storage Operating humidity: 20–90% RH, non-condensing. Storage: −40 to +85°C and 10–95% RH. Temperature coefficient ±0.03%/°C. Vibration 10–500 Hz, 2G; 10 minutes per cycle, 60 minutes along each of the X, Y and Z axes. Connections and construction Overall dimensions 32.1 × 20.5 × 12.5 mm (L × W × H). Drawing tolerance: ±1 mm. Power and control pin assignments Bottom view: pins 1 and 2 = −Vin; 11 and 12 = −Vout; 13 and 14 = +Vout; 22 = PWM DIM; 23 and 24 = +Vin. Other pins are NC. Do not connect −Vin to −Vout. Pin dimensions Pin diameter 0.60 mm; the catalog states a pin tolerance of ±0.5 mm. The side view shows 3.81 mm pin projection. Use the bottom-view drawing for the exact PCB footprint and pin orientation. Case and encapsulation Fully encapsulated plastic case rated UL94-V0. The specification table identifies the potting material as epoxy (UL94-V0), while the overview calls it silicone. Confirm the actual compound with the manufacturer if material identity is important to the application. Soldering limits Wave soldering: 265°C for 5 seconds maximum. Manual soldering: 390°C for 3 seconds maximum. Unit mass 15.6 g for this pin-style model, explicitly listed as unit weight in the catalog. Installation requirements Installation reference scope The catalogue links the general LED installation manual, whose family list does not explicitly name NLDD. Use this model's DC input, output and control diagrams; the reference does not establish AC wiring or circuit-breaker ratings for this module. DC wiring separation Do not connect -Vin to -Vout. Do not connect this unit's output to its own input or to the output of another power source. Step-down operating boundary The catalogue specifies an output at least 4 V below the DC input, within the model-specific output-voltage range. Select the LED forward voltage and input together. PWM reference and unused control Apply PWM relative to -Vin at 100-1000 Hz. Leave the control input open when unused; ON is above 2.5 V up to 5 V or open, and OFF is below 0.8 V or shorted to -Vin. Exact control connection This pin version uses position 22 for PWM DIM. Use the exact model drawing rather than assuming all current ratings have the same control-pin position. System EMC verification This module is a component of the final system. Verify EMC with the complete device and use a model-appropriate additional EMI filter if required. Safety and reference information Safety approvals LVD BS EN/EN 61347-1, BS EN/EN 61347-2-13, IEC 61347, and EAC TP TC 004 approved. The series is designed for Class III applications (SELV). EMC references BS EN/EN 55015 and BS EN/EN 61547 compliance. Immunity: BS EN/EN 61000-4-2, -3, -4, -6 and -8, light-industry level; EAC TP TC 020. MTBF 29984.3 thousand hours minimum, Telcordia SR-332 (Bellcore); 2881.6 thousand hours minimum, MIL-HDBK-217F at 25°C. Applications and warranty Applications include DC battery-powered lighting, portable lighting, DC 48 V track lighting and DC 24 V landscape lighting, within the electrical and environmental limits above. The catalog states a 3-year manufacturer warranty, subject to the manufacturer’s warranty statement. Packing reference Catalog packing alternatives include 15 units per tube and 40 units per tray. These logistics quantities do not change the separately specified unit mass or establish the quantity supplied with an individual order. Download MEAN WELL LED Installation Manual (Catalog Reference)

Read more less

NLDD-500H DC/DC LED driver MEAN WELL NLDD-500H is a DC/DC step-down constant-current LED driver rated at 500 mA, with a 6–52 VDC output operating window and 10–56 VDC input. This pin-style model provides PWM dimming and remote on/off control in a fully encapsulated package for Class III lighting applications (SELV). Select the LED string within its voltage window and keep its operating voltage at least 4 V below the actual input voltage. Download MEAN WELL NLDD-H Datasheet (PDF)Combined catalog pages 1–6; NLDD-H revision 2024-10-16. Output and model selection Complete model / construction NLDD-500H / NLDD-H series. H denotes pin style. The output current is selected by the complete model code. Rated output current 500 mA constant current. The family offers separate 350, 500, 700, 1050, 1200 and 1400 mA models; these are model choices, not an adjustment range for this unit. LED output-voltage window 6–52 VDC, subject to the input-to-output voltage margin. Typical current accuracy ±5% at 48 VDC input. Maximum ripple and noise 150 mVp-p. Measurement uses 20 MHz bandwidth and a 12-inch twisted pair terminated with a 0.1 µF capacitor. Switching frequency 200 kHz. This is the converter switching frequency, separate from the PWM control frequency. Input and performance DC input-voltage range 10–56 VDC operating range; 59 VDC maximum. The maximum value does not extend the normal operating range. Full-load input current 490 mA at 48 VDC input, as listed in the specification table. No-load input current 5 mA, as listed in the specification table. Maximum efficiency 96% at full load and 36 VDC or 48 VDC input. Efficiency varies with the operating point; use this model-specific table value and its stated conditions. Reference measurement conditions Unless otherwise specified: normal 48 VDC input, rated load, +25°C and 70% RH ambient. Dimming and operating control PWM application levels The application drawing uses 5 V high and 0 V low control levels at 100–1000 Hz. PWM current characteristic The output follows PWM current pulses. The illustrated duty/current characteristic is marked ±5% typical; its labeled duty scale begins at 10%. Use the stated on/off thresholds for shutdown rather than treating the plot as a guaranteed continuous low-end dimming range. Shutdown input current Maximum 2 mA with PWM dimming OFF at 48 VDC input. Protection and environment Short-circuit protection Regulated at rated current. The short-circuit condition can be sustained, with automatic recovery after the fault is removed. Overtemperature protection Typical detection at Tj 165°C on the main control IC, IC1. Output shuts down and recovers automatically after the temperature falls. This is an internal junction threshold, not the allowable ambient temperature. Cooling and ambient limits Free-air convection. The common specification lists −40 to +50°C subject to derating. For this model, the full-load curve runs from −40 to +50°C and ends at +50°C. Respect the case-temperature and other operating limits as well. Maximum operating case temperature 90°C. Humidity and storage Operating humidity: 20–90% RH, non-condensing. Storage: −40 to +85°C and 10–95% RH. Temperature coefficient ±0.03%/°C. Vibration 10–500 Hz, 2G; 10 minutes per cycle, 60 minutes along each of the X, Y and Z axes. Connections and construction Overall dimensions 32.1 × 20.5 × 12.5 mm (L × W × H). Drawing tolerance: ±1 mm. Power and control pin assignments Bottom view: pins 1 and 2 = −Vin; 11 and 12 = −Vout; 13 and 14 = +Vout; 22 = PWM DIM; 23 and 24 = +Vin. Other pins are NC. Do not connect −Vin to −Vout. Pin dimensions Pin diameter 0.60 mm; the catalog states a pin tolerance of ±0.5 mm. The side view shows 3.81 mm pin projection. Use the bottom-view drawing for the exact PCB footprint and pin orientation. Case and encapsulation Fully encapsulated plastic case rated UL94-V0. The specification table identifies the potting material as epoxy (UL94-V0), while the overview calls it silicone. Confirm the actual compound with the manufacturer if material identity is important to the application. Soldering limits Wave soldering: 265°C for 5 seconds maximum. Manual soldering: 390°C for 3 seconds maximum. Unit mass 15.6 g for this pin-style model, explicitly listed as unit weight in the catalog. Installation requirements Installation reference scope The catalogue links the general LED installation manual, whose family list does not explicitly name NLDD. Use this model's DC input, output and control diagrams; the reference does not establish AC wiring or circuit-breaker ratings for this module. DC wiring separation Do not connect -Vin to -Vout. Do not connect this unit's output to its own input or to the output of another power source. Step-down operating boundary The catalogue specifies an output at least 4 V below the DC input, within the model-specific output-voltage range. Select the LED forward voltage and input together. PWM reference and unused control Apply PWM relative to -Vin at 100-1000 Hz. Leave the control input open when unused; ON is above 2.5 V up to 5 V or open, and OFF is below 0.8 V or shorted to -Vin. Exact control connection This pin version uses position 22 for PWM DIM. Use the exact model drawing rather than assuming all current ratings have the same control-pin position. System EMC verification This module is a component of the final system. Verify EMC with the complete device and use a model-appropriate additional EMI filter if required. Safety and reference information Safety approvals LVD BS EN/EN 61347-1, BS EN/EN 61347-2-13, IEC 61347, and EAC TP TC 004 approved. The series is designed for Class III applications (SELV). EMC references BS EN/EN 55015 and BS EN/EN 61547 compliance. Immunity: BS EN/EN 61000-4-2, -3, -4, -6 and -8, light-industry level; EAC TP TC 020. MTBF 29984.3 thousand hours minimum, Telcordia SR-332 (Bellcore); 2881.6 thousand hours minimum, MIL-HDBK-217F at 25°C. Applications and warranty Applications include DC battery-powered lighting, portable lighting, DC 48 V track lighting and DC 24 V landscape lighting, within the electrical and environmental limits above. The catalog states a 3-year manufacturer warranty, subject to the manufacturer’s warranty statement. Packing reference Catalog packing alternatives include 15 units per tube and 40 units per tray. These logistics quantities do not change the separately specified unit mass or establish the quantity supplied with an individual order. Download MEAN WELL LED Installation Manual (Catalog Reference)

Read more less

NLDD-350H DC/DC LED driver MEAN WELL NLDD-350H is a DC/DC step-down constant-current LED driver rated at 350 mA, with a 6–52 VDC output operating window and 10–56 VDC input. This pin-style model provides PWM dimming and remote on/off control in a fully encapsulated package for Class III lighting applications (SELV). Select the LED string within its voltage window and keep its operating voltage at least 4 V below the actual input voltage. Download MEAN WELL NLDD-H Datasheet (PDF)Combined catalog pages 1–6; NLDD-H revision 2024-10-16. Output and model selection Complete model / construction NLDD-350H / NLDD-H series. H denotes pin style. The output current is selected by the complete model code. Rated output current 350 mA constant current. The family offers separate 350, 500, 700, 1050, 1200 and 1400 mA models; these are model choices, not an adjustment range for this unit. LED output-voltage window 6–52 VDC, subject to the input-to-output voltage margin. Typical current accuracy ±5% at 48 VDC input. Maximum ripple and noise 150 mVp-p. Measurement uses 20 MHz bandwidth and a 12-inch twisted pair terminated with a 0.1 µF capacitor. Switching frequency 200 kHz. This is the converter switching frequency, separate from the PWM control frequency. Input and performance DC input-voltage range 10–56 VDC operating range; 59 VDC maximum. The maximum value does not extend the normal operating range. Full-load input current 350 mA at 48 VDC input, as listed in the specification table. No-load input current 5 mA, as listed in the specification table. Maximum efficiency 96% at full load and 36 VDC or 48 VDC input. Efficiency varies with the operating point; use this model-specific table value and its stated conditions. Reference measurement conditions Unless otherwise specified: normal 48 VDC input, rated load, +25°C and 70% RH ambient. Dimming and operating control PWM application levels The application drawing uses 5 V high and 0 V low control levels at 100–1000 Hz. PWM current characteristic The output follows PWM current pulses. The illustrated duty/current characteristic is marked ±5% typical; its labeled duty scale begins at 10%. Use the stated on/off thresholds for shutdown rather than treating the plot as a guaranteed continuous low-end dimming range. Shutdown input current Maximum 2 mA with PWM dimming OFF at 48 VDC input. Protection and environment Short-circuit protection Regulated at rated current. The short-circuit condition can be sustained, with automatic recovery after the fault is removed. Overtemperature protection Typical detection at Tj 165°C on the main control IC, IC1. Output shuts down and recovers automatically after the temperature falls. This is an internal junction threshold, not the allowable ambient temperature. Cooling and ambient limits Free-air convection. The common specification lists −40 to +50°C subject to derating. For this model, the full-load curve runs from −40 to +50°C and ends at +50°C. Respect the case-temperature and other operating limits as well. Maximum operating case temperature 90°C. Humidity and storage Operating humidity: 20–90% RH, non-condensing. Storage: −40 to +85°C and 10–95% RH. Temperature coefficient ±0.03%/°C. Vibration 10–500 Hz, 2G; 10 minutes per cycle, 60 minutes along each of the X, Y and Z axes. Connections and construction Overall dimensions 32.1 × 20.5 × 12.5 mm (L × W × H). Drawing tolerance: ±1 mm. Power and control pin assignments Bottom view: pins 1 and 2 = −Vin; 11 and 12 = −Vout; 13 and 14 = +Vout; 22 = PWM DIM; 23 and 24 = +Vin. Other pins are NC. Do not connect −Vin to −Vout. Pin dimensions Pin diameter 0.60 mm; the catalog states a pin tolerance of ±0.5 mm. The side view shows 3.81 mm pin projection. Use the bottom-view drawing for the exact PCB footprint and pin orientation. Case and encapsulation Fully encapsulated plastic case rated UL94-V0. The specification table identifies the potting material as epoxy (UL94-V0), while the overview calls it silicone. Confirm the actual compound with the manufacturer if material identity is important to the application. Soldering limits Wave soldering: 265°C for 5 seconds maximum. Manual soldering: 390°C for 3 seconds maximum. Unit mass 15.6 g for this pin-style model, explicitly listed as unit weight in the catalog. Installation requirements Installation reference scope The catalogue links the general LED installation manual, whose family list does not explicitly name NLDD. Use this model's DC input, output and control diagrams; the reference does not establish AC wiring or circuit-breaker ratings for this module. DC wiring separation Do not connect -Vin to -Vout. Do not connect this unit's output to its own input or to the output of another power source. Step-down operating boundary The catalogue specifies an output at least 4 V below the DC input, within the model-specific output-voltage range. Select the LED forward voltage and input together. PWM reference and unused control Apply PWM relative to -Vin at 100-1000 Hz. Leave the control input open when unused; ON is above 2.5 V up to 5 V or open, and OFF is below 0.8 V or shorted to -Vin. Exact control connection This pin version uses position 22 for PWM DIM. Use the exact model drawing rather than assuming all current ratings have the same control-pin position. System EMC verification This module is a component of the final system. Verify EMC with the complete device and use a model-appropriate additional EMI filter if required. Safety and reference information Safety approvals LVD BS EN/EN 61347-1, BS EN/EN 61347-2-13, IEC 61347, and EAC TP TC 004 approved. The series is designed for Class III applications (SELV). EMC references BS EN/EN 55015 and BS EN/EN 61547 compliance. Immunity: BS EN/EN 61000-4-2, -3, -4, -6 and -8, light-industry level; EAC TP TC 020. MTBF 29984.3 thousand hours minimum, Telcordia SR-332 (Bellcore); 2881.6 thousand hours minimum, MIL-HDBK-217F at 25°C. Applications and warranty Applications include DC battery-powered lighting, portable lighting, DC 48 V track lighting and DC 24 V landscape lighting, within the electrical and environmental limits above. The catalog states a 3-year manufacturer warranty, subject to the manufacturer’s warranty statement. Packing reference Catalog packing alternatives include 15 units per tube and 40 units per tray. These logistics quantities do not change the separately specified unit mass or establish the quantity supplied with an individual order. Download MEAN WELL LED Installation Manual (Catalog Reference)

Read more less