MEAN WELL DKMW20 series: isolated dual-output DC-DC converter - DKMW20F-15

Description

MEAN WELL DKMW20F-15 — DC-DC converter

MEAN WELL DKMW20F-15 is an isolated, regulated DC-DC converter with a ±15 V DC dual output and a 9–36 V DC input range. Its 1 × 1 inch DIP package supports PCB integration in industrial control, telecom/datacom, wireless networks and instrumentation. Remote ON/OFF control is built in.

Download MEAN WELL DKMW20 Datasheet (PDF)

Series section: PDF pages 21–26.

Model and output specifications

Parameter Specification
Complete model DKMW20F-15
Output configuration Dual regulated outputs with a Common return.
Output voltage ±15 V DC.
Output current range 0–660 mA per output rail. No minimum load is required.
Rated power and load limit 20 W series rating. Observe both the output-current limits and the rated total power.
Voltage accuracy ±1.5%.
Line regulation ±0.2%, measured from low to high input voltage at rated load.
Load regulation ±1%, measured over 0–100% of rated load.
Ripple and noise 100 mVp-p, measured at 20 MHz bandwidth using a 12-inch twisted pair terminated with 0.1 µF and 47 µF capacitors.
Maximum capacitive load 650 µF per output.
Typical switching frequency 330 kHz.

Input and protection

Parameter Specification
Input voltage 9–36 V DC; 4:1 range. Nominal input voltage: 24 V DC.
Input current 10 mA at no load; 936 mA at full load, at the reference test conditions.
Typical efficiency 87% at the reference test conditions.
Input filter and fuse Pi-type input filter. Recommended external fuse: 3 A, time-delay/slow-blow type.
Input surge limit 50 V DC for 100 ms maximum; not a continuous input rating.
Internal power dissipation 500 mW, as listed in the specification.
Short-circuit protection Continuous protection with automatic recovery.
Overload protection 110–170% of rated output power; recovers automatically after the fault is removed.
Overvoltage protection Diode clamp.
Input undervoltage lockout Start-up threshold: 8.8 V DC; shutdown threshold: 8 V DC. These do not extend the normal input-voltage range.
Temperature-protection qualification The series overview mentions overtemperature protection, but the detailed protection table does not define its operation or recovery. Confirm this function with the manufacturer if required.

Control and adjustment

Parameter Specification
Remote ON/OFF control R.C. is referenced to −Vin. Power ON: Above 3.5 V up to 75 V, or open circuit. Power OFF: Below 1.2 V, or short circuit.
Output trim The specified external trim function is for single-output models. This dual-output model uses Common in place of the trim connection.

Operating conditions and isolation

Parameter Specification
Operating temperature and cooling −40 to +85°C, with free-air convection and load derating.
Load derating Natural convection: 100% load through +65°C, reducing to 50% at +85°C. Keep ambient temperature within the specified −40 to +85°C operating range.
Maximum case temperature +105°C; this is the case limit, not an ambient-temperature rating.
Working humidity 20–90% RH, non-condensing.
Storage conditions −55 to +125°C; 10–95% RH, non-condensing.
Temperature coefficient 0.03%/°C over 0–60°C.
Vibration 10–500 Hz, 2G; 10 minutes per cycle, 60 minutes along each of the X, Y and Z axes.
Input-to-output withstand voltage 1.5 kV DC (1500 V DC).
Isolation resistance 100 MΩ between input and output, at 500 V DC, 25°C and 70% RH.
Typical isolation capacitance 1500 pF between input and output.
Reference test conditions Unless otherwise specified: normal 24 V DC input, rated load, 25°C and 70% RH.

Dimensions and PCB installation

Parameter Specification
Package and construction DIP 1 × 1 inch package with industry-standard pinout. Black-coated copper case with a non-conductive base.
Dimensions 25.4 × 25.4 × 10.2 mm (L × W × H).
Pin assignment 1 +Vin; 2 −Vin; 3 +Vout; 4 Common; 5 −Vout; 6 R.C. Check the bottom-view pin drawing against the top-view PCB footprint.
PCB layout Pin diameter: 1 ±0.1 mm. Lead length: 5.6 mm minimum. PCB hole diameter: 1.2 mm (+0.2/−0.1 mm). Use the datasheet footprint for the unequal pin spacing, 2.54 mm grid and 20.32 mm spacing between pin rows.
Soldering limit 1–5 seconds at 260°C maximum, measured 1.5 mm from the case.
Unit weight reference 19 g, catalog packing reference per unit.
Catalog packing 12 pieces per tube; 600 pieces per carton.

EMC and reference information

Parameter Specification
Safety standards EAC TP TC 020/2011 approved.
EMC emission conditions Conducted emissions: N/A in the table. Radiated emissions: Class A without additional components, BS EN/EN55032 (CISPR32). Verify the completed equipment against the applicable EMC requirements.
EMC immunity BS EN/EN 61000-4-2: Level 2, ±8 kV air / ±4 kV contact; -4-3: Level 2, 3 V/m; -4-4: Level 1, 0.5 kV; -4-5: Level 1, 0.5 kV line-to-line; -4-6: Level 2, 3 V (e.m.f.); -4-8: Level 2, 3 A/m.
Reliability reference MTBF: 1220 khrs to MIL-HDBK-217F at 25°C. This is a reliability reference value.
Manufacturer warranty reference The catalog states a 3-year manufacturer warranty.

MEAN WELL DKMW20 series: isolated dual-output DC-DC converter - DKMW20F-15

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MEAN WELL DKMW20F-15 — DC-DC converter MEAN WELL DKMW20F-15 is an isolated, regulated DC-DC converter with a ±15 V DC... Read more

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    Description

    MEAN WELL DKMW20F-15 — DC-DC converter

    MEAN WELL DKMW20F-15 is an isolated, regulated DC-DC converter with a ±15 V DC dual output and a 9–36 V DC input range. Its 1 × 1 inch DIP package supports PCB integration in industrial control, telecom/datacom, wireless networks and instrumentation. Remote ON/OFF control is built in.

    Download MEAN WELL DKMW20 Datasheet (PDF)

    Series section: PDF pages 21–26.

    Model and output specifications

    Parameter Specification
    Complete model DKMW20F-15
    Output configuration Dual regulated outputs with a Common return.
    Output voltage ±15 V DC.
    Output current range 0–660 mA per output rail. No minimum load is required.
    Rated power and load limit 20 W series rating. Observe both the output-current limits and the rated total power.
    Voltage accuracy ±1.5%.
    Line regulation ±0.2%, measured from low to high input voltage at rated load.
    Load regulation ±1%, measured over 0–100% of rated load.
    Ripple and noise 100 mVp-p, measured at 20 MHz bandwidth using a 12-inch twisted pair terminated with 0.1 µF and 47 µF capacitors.
    Maximum capacitive load 650 µF per output.
    Typical switching frequency 330 kHz.

    Input and protection

    Parameter Specification
    Input voltage 9–36 V DC; 4:1 range. Nominal input voltage: 24 V DC.
    Input current 10 mA at no load; 936 mA at full load, at the reference test conditions.
    Typical efficiency 87% at the reference test conditions.
    Input filter and fuse Pi-type input filter. Recommended external fuse: 3 A, time-delay/slow-blow type.
    Input surge limit 50 V DC for 100 ms maximum; not a continuous input rating.
    Internal power dissipation 500 mW, as listed in the specification.
    Short-circuit protection Continuous protection with automatic recovery.
    Overload protection 110–170% of rated output power; recovers automatically after the fault is removed.
    Overvoltage protection Diode clamp.
    Input undervoltage lockout Start-up threshold: 8.8 V DC; shutdown threshold: 8 V DC. These do not extend the normal input-voltage range.
    Temperature-protection qualification The series overview mentions overtemperature protection, but the detailed protection table does not define its operation or recovery. Confirm this function with the manufacturer if required.

    Control and adjustment

    Parameter Specification
    Remote ON/OFF control R.C. is referenced to −Vin. Power ON: Above 3.5 V up to 75 V, or open circuit. Power OFF: Below 1.2 V, or short circuit.
    Output trim The specified external trim function is for single-output models. This dual-output model uses Common in place of the trim connection.

    Operating conditions and isolation

    Parameter Specification
    Operating temperature and cooling −40 to +85°C, with free-air convection and load derating.
    Load derating Natural convection: 100% load through +65°C, reducing to 50% at +85°C. Keep ambient temperature within the specified −40 to +85°C operating range.
    Maximum case temperature +105°C; this is the case limit, not an ambient-temperature rating.
    Working humidity 20–90% RH, non-condensing.
    Storage conditions −55 to +125°C; 10–95% RH, non-condensing.
    Temperature coefficient 0.03%/°C over 0–60°C.
    Vibration 10–500 Hz, 2G; 10 minutes per cycle, 60 minutes along each of the X, Y and Z axes.
    Input-to-output withstand voltage 1.5 kV DC (1500 V DC).
    Isolation resistance 100 MΩ between input and output, at 500 V DC, 25°C and 70% RH.
    Typical isolation capacitance 1500 pF between input and output.
    Reference test conditions Unless otherwise specified: normal 24 V DC input, rated load, 25°C and 70% RH.

    Dimensions and PCB installation

    Parameter Specification
    Package and construction DIP 1 × 1 inch package with industry-standard pinout. Black-coated copper case with a non-conductive base.
    Dimensions 25.4 × 25.4 × 10.2 mm (L × W × H).
    Pin assignment 1 +Vin; 2 −Vin; 3 +Vout; 4 Common; 5 −Vout; 6 R.C. Check the bottom-view pin drawing against the top-view PCB footprint.
    PCB layout Pin diameter: 1 ±0.1 mm. Lead length: 5.6 mm minimum. PCB hole diameter: 1.2 mm (+0.2/−0.1 mm). Use the datasheet footprint for the unequal pin spacing, 2.54 mm grid and 20.32 mm spacing between pin rows.
    Soldering limit 1–5 seconds at 260°C maximum, measured 1.5 mm from the case.
    Unit weight reference 19 g, catalog packing reference per unit.
    Catalog packing 12 pieces per tube; 600 pieces per carton.

    EMC and reference information

    Parameter Specification
    Safety standards EAC TP TC 020/2011 approved.
    EMC emission conditions Conducted emissions: N/A in the table. Radiated emissions: Class A without additional components, BS EN/EN55032 (CISPR32). Verify the completed equipment against the applicable EMC requirements.
    EMC immunity BS EN/EN 61000-4-2: Level 2, ±8 kV air / ±4 kV contact; -4-3: Level 2, 3 V/m; -4-4: Level 1, 0.5 kV; -4-5: Level 1, 0.5 kV line-to-line; -4-6: Level 2, 3 V (e.m.f.); -4-8: Level 2, 3 A/m.
    Reliability reference MTBF: 1220 khrs to MIL-HDBK-217F at 25°C. This is a reliability reference value.
    Manufacturer warranty reference The catalog states a 3-year manufacturer warranty.

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