MEAN WELL MDS15 series: medical DC/DC converter - MDS15B-15

Description

MDS15B-15 — medical DC/DC converter

MEAN WELL MDS15B-15 is a regulated, isolated 15 W medical-grade DC/DC converter with a single 15 V DC output rated at 1000 mA. It accepts 18–36 V DC input, nominal 24 V, in a DIP 2 × 1 inch package. No minimum load is required; reinforced input/output isolation and low patient leakage support medical-equipment integration within the stated conditions.

Download MEAN WELL MDS15 Datasheet (PDF)
Download MEAN WELL EMI Testing Guidance (PDF)

MDS15 section: PDF pages 23–27, edition 2024-04-30. Refer to the model-selection table, pin layout and applicable derating curve for this complete model.

Model selection, output and input

Complete model and input code MDS15B-15 / MDS15 series. Code B selects 18–36 V DC input (nominal 24 V); the output suffix selects 15 V DC. Single-output, isolated regulated converter; 2:1 input range.
Rated output 15 V DC, 1000 mA rated output current; 15 W rated series power. No minimum load is required.
Maximum capacitive load 720 µF maximum.
Input current No load: 7 mA. Full load: 700 mA, at nominal 24 V DC input under the catalog conditions.
Efficiency 86% typical at nominal input and rated load.
Voltage accuracy and regulation Voltage accuracy ±1%; line regulation ±0.5%, measured from low to high input at rated load; load regulation ±0.5%, measured from 0% to 100% rated load.
Ripple and noise 60 mV p-p; measured at 20 MHz bandwidth using a 12-inch twisted pair terminated with 0.1 µF and 47 µF capacitors.
Input filter, surge and recommended fuse Pi-type input filter. Surge voltage 50 V DC for 100 ms maximum. External 2 A time-delay fuse recommended for this 24 V input type; this is a component rating, not a dedicated accessory part number.
Switching frequency 250 kHz typical.
Measurement conditions Unless otherwise specified, parameters are at nominal 24 V DC input, rated load, +25°C ambient and 70% RH.

Protection and operating conditions

Short-circuit protection Continuous protection with automatic recovery.
Overload protection 110–185% of rated output power; recovers automatically after the fault condition is removed.
Input undervoltage lockout 15 V DC for this 24 V input type.
Working temperature and derating −40 to +90°C operating ambient, subject to derating. The natural-convection graph identifies the 24 V input branch with a full-load boundary at +70°C. The source graph marks 50% load at +85°C and 30% at +90°C. Above the full-load boundary, follow the original branch-specific derating graph on PDF page 26; do not extend the operating range beyond +90°C.
Cooling and case temperature Free-air convection; maximum case temperature +110°C. Ambient and case temperature are different limits.
Humidity and storage Operating humidity 20–90% RH, non-condensing. Storage −55 to +125°C, 10–95% RH, non-condensing.
Temperature coefficient 0.03%/°C over 0 to +70°C.
Vibration 10–500 Hz, 2 G; 10 minutes per cycle, 60 minutes along each X, Y and Z axis.

Medical isolation, safety and EMC

Medical isolation and patient leakage Reinforced isolation, input–output withstand 4 kV AC (4000 V AC). 2 × MOPP is based on 250 V AC working voltage between primary and secondary. Patient leakage current <5 µA.
Safety standards IEC 60601-1 (LVD), 3rd edition, and EAC TP TC 020/2011 are listed. The additional EAC TP TC 004 listing applies only to 48 V input types, not this input type.
Isolation resistance and capacitance Input–output isolation resistance: 100 MΩ at 500 V DC, +25°C and 70% RH. Isolation capacitance: 100 pF typical.
EMC emissions Conducted and radiated emissions: BS EN/EN 55011, Class A without external components. Reconfirm EMC compliance in the finished equipment with its actual wiring, layout and load.
EMC immunity BS EN/EN 61000-4-2 ESD: Level 1, ±15 kV air / ±8 kV contact; 61000-4-3 radiated susceptibility: Level 1, 10 V/m; 61000-4-4 EFT/bursts: Level 1, ±2 kV; 61000-4-5 surge: Level 1, ±1 kV line–line / ±2 kV line–GND; 61000-4-6 conducted: Level 1, 10 Vrms (e.m.f.). Magnetic field, BS EN/EN 61000-4-8: Level 2, 10 A/m.
Reliability and warranty MTBF 1060K hours, MIL-HDBK-217F at +25°C. Manufacturer-listed warranty: 3 years.

Mechanical details, installation and packing

Package and dimensions DIP 2 × 1 inch package with international standard pinout. 50.8 × 25.4 × 12 mm (L × W × H); UL94V-0 plastic case. Mechanical drawing dimensional tolerance ±0.5 mm; pin diameter 1 ±0.1 mm.
Pin configuration Bottom view: pin 1 +Vin; pin 2 −Vin; pin 3 +Vout; pin 4 No Pin; pin 5 −Vout. Use the bottom-view orientation shown in the datasheet.
Pin positioning Opposite pin-column centers are 45.72 mm apart, with 2.54 mm end offsets. Input pins 1–2 have 5.08 mm spacing; pin 1 lies 7.62 mm from the horizontal centerline and 5.08 mm from the shown case edge. Output reference positions 3–4 and 4–5 are spaced 10.16 mm; position 4 has no pin. Pin 3 edge offset is 2.54 mm. Pin projection is 5.08 mm. Verify the original bottom-view drawing before PCB layout.
Soldering At 1.5 mm from the case: 260°C maximum for 1–3 seconds.
Accessories and integration No dedicated accessory part number is specified in this series datasheet. The recommended external input fuse must be selected for the applicable input branch. Confirm the full equipment design and applicable medical-safety requirements for the intended installation.
Catalog unit-weight reference 30 g, catalog packing reference per unit; not an independently measured net weight or the shipping-parcel weight.
Packing quantities and dimensions 18 pieces per tube; one tube gross weight 670 g. Maximum 432 pieces / 24 tubes per carton; one carton gross weight 16.83 kg. Packing tube drawing: 520 × 55 × 22.8 mm. Outer carton: 545 × 220 × 240 mm (L × W × H). These are packaging dimensions, not the converter dimensions.
Applications Medical devices, medical oxygen monitors, CT scanning, medical carts and oral-care equipment, subject to the completed equipment design and approvals.

Component and system EMC guidance

Complete-system EMC verification Verify EMC with the converter installed in the final equipment and connected to a representative load. Wiring, assembly and the application affect the result. Follow the model's specified EMC conditions and any required external components; the linked EMI testing guidance does not certify the finished equipment.

MEAN WELL MDS15 series: medical DC/DC converter - MDS15B-15

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MDS15B-15 — medical DC/DC converter MEAN WELL MDS15B-15 is a regulated, isolated 15 W medical-grade DC/DC converter with a single... Read more

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    Description

    MDS15B-15 — medical DC/DC converter

    MEAN WELL MDS15B-15 is a regulated, isolated 15 W medical-grade DC/DC converter with a single 15 V DC output rated at 1000 mA. It accepts 18–36 V DC input, nominal 24 V, in a DIP 2 × 1 inch package. No minimum load is required; reinforced input/output isolation and low patient leakage support medical-equipment integration within the stated conditions.

    Download MEAN WELL MDS15 Datasheet (PDF)
    Download MEAN WELL EMI Testing Guidance (PDF)

    MDS15 section: PDF pages 23–27, edition 2024-04-30. Refer to the model-selection table, pin layout and applicable derating curve for this complete model.

    Model selection, output and input

    Complete model and input code MDS15B-15 / MDS15 series. Code B selects 18–36 V DC input (nominal 24 V); the output suffix selects 15 V DC. Single-output, isolated regulated converter; 2:1 input range.
    Rated output 15 V DC, 1000 mA rated output current; 15 W rated series power. No minimum load is required.
    Maximum capacitive load 720 µF maximum.
    Input current No load: 7 mA. Full load: 700 mA, at nominal 24 V DC input under the catalog conditions.
    Efficiency 86% typical at nominal input and rated load.
    Voltage accuracy and regulation Voltage accuracy ±1%; line regulation ±0.5%, measured from low to high input at rated load; load regulation ±0.5%, measured from 0% to 100% rated load.
    Ripple and noise 60 mV p-p; measured at 20 MHz bandwidth using a 12-inch twisted pair terminated with 0.1 µF and 47 µF capacitors.
    Input filter, surge and recommended fuse Pi-type input filter. Surge voltage 50 V DC for 100 ms maximum. External 2 A time-delay fuse recommended for this 24 V input type; this is a component rating, not a dedicated accessory part number.
    Switching frequency 250 kHz typical.
    Measurement conditions Unless otherwise specified, parameters are at nominal 24 V DC input, rated load, +25°C ambient and 70% RH.

    Protection and operating conditions

    Short-circuit protection Continuous protection with automatic recovery.
    Overload protection 110–185% of rated output power; recovers automatically after the fault condition is removed.
    Input undervoltage lockout 15 V DC for this 24 V input type.
    Working temperature and derating −40 to +90°C operating ambient, subject to derating. The natural-convection graph identifies the 24 V input branch with a full-load boundary at +70°C. The source graph marks 50% load at +85°C and 30% at +90°C. Above the full-load boundary, follow the original branch-specific derating graph on PDF page 26; do not extend the operating range beyond +90°C.
    Cooling and case temperature Free-air convection; maximum case temperature +110°C. Ambient and case temperature are different limits.
    Humidity and storage Operating humidity 20–90% RH, non-condensing. Storage −55 to +125°C, 10–95% RH, non-condensing.
    Temperature coefficient 0.03%/°C over 0 to +70°C.
    Vibration 10–500 Hz, 2 G; 10 minutes per cycle, 60 minutes along each X, Y and Z axis.

    Medical isolation, safety and EMC

    Medical isolation and patient leakage Reinforced isolation, input–output withstand 4 kV AC (4000 V AC). 2 × MOPP is based on 250 V AC working voltage between primary and secondary. Patient leakage current <5 µA.
    Safety standards IEC 60601-1 (LVD), 3rd edition, and EAC TP TC 020/2011 are listed. The additional EAC TP TC 004 listing applies only to 48 V input types, not this input type.
    Isolation resistance and capacitance Input–output isolation resistance: 100 MΩ at 500 V DC, +25°C and 70% RH. Isolation capacitance: 100 pF typical.
    EMC emissions Conducted and radiated emissions: BS EN/EN 55011, Class A without external components. Reconfirm EMC compliance in the finished equipment with its actual wiring, layout and load.
    EMC immunity BS EN/EN 61000-4-2 ESD: Level 1, ±15 kV air / ±8 kV contact; 61000-4-3 radiated susceptibility: Level 1, 10 V/m; 61000-4-4 EFT/bursts: Level 1, ±2 kV; 61000-4-5 surge: Level 1, ±1 kV line–line / ±2 kV line–GND; 61000-4-6 conducted: Level 1, 10 Vrms (e.m.f.). Magnetic field, BS EN/EN 61000-4-8: Level 2, 10 A/m.
    Reliability and warranty MTBF 1060K hours, MIL-HDBK-217F at +25°C. Manufacturer-listed warranty: 3 years.

    Mechanical details, installation and packing

    Package and dimensions DIP 2 × 1 inch package with international standard pinout. 50.8 × 25.4 × 12 mm (L × W × H); UL94V-0 plastic case. Mechanical drawing dimensional tolerance ±0.5 mm; pin diameter 1 ±0.1 mm.
    Pin configuration Bottom view: pin 1 +Vin; pin 2 −Vin; pin 3 +Vout; pin 4 No Pin; pin 5 −Vout. Use the bottom-view orientation shown in the datasheet.
    Pin positioning Opposite pin-column centers are 45.72 mm apart, with 2.54 mm end offsets. Input pins 1–2 have 5.08 mm spacing; pin 1 lies 7.62 mm from the horizontal centerline and 5.08 mm from the shown case edge. Output reference positions 3–4 and 4–5 are spaced 10.16 mm; position 4 has no pin. Pin 3 edge offset is 2.54 mm. Pin projection is 5.08 mm. Verify the original bottom-view drawing before PCB layout.
    Soldering At 1.5 mm from the case: 260°C maximum for 1–3 seconds.
    Accessories and integration No dedicated accessory part number is specified in this series datasheet. The recommended external input fuse must be selected for the applicable input branch. Confirm the full equipment design and applicable medical-safety requirements for the intended installation.
    Catalog unit-weight reference 30 g, catalog packing reference per unit; not an independently measured net weight or the shipping-parcel weight.
    Packing quantities and dimensions 18 pieces per tube; one tube gross weight 670 g. Maximum 432 pieces / 24 tubes per carton; one carton gross weight 16.83 kg. Packing tube drawing: 520 × 55 × 22.8 mm. Outer carton: 545 × 220 × 240 mm (L × W × H). These are packaging dimensions, not the converter dimensions.
    Applications Medical devices, medical oxygen monitors, CT scanning, medical carts and oral-care equipment, subject to the completed equipment design and approvals.

    Component and system EMC guidance

    Complete-system EMC verification Verify EMC with the converter installed in the final equipment and connected to a representative load. Wiring, assembly and the application affect the result. Follow the model's specified EMC conditions and any required external components; the linked EMI testing guidance does not certify the finished equipment.

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