MEAN WELL DKA15 series: Isolated dual-output DC-DC converter - DKA15A-12

Description

DKA15A-12 — Isolated dual-output DC-DC converter

MEAN WELL DKA15A-12 is an isolated, regulated dual-output DC-DC converter accepting 9–18 V DC. It provides ±12 V DC relative to COM with 62.5–625 mA per rail. It uses a 2 × 1 inch package and requires the specified minimum load.

Download MEAN WELL DKA15 Datasheet (PDF)

Series section: PDF pages 92–93.

Model and output specifications

Output voltage ±12 V DC relative to COM.
Rated output current 62.5–625 mA per output rail.
Series power and load limit 15 W. Observe the current range and power limit together.
Minimum load Maintain the specified 62.5 mA minimum on each rail.
Voltage accuracy ±2.0%
Line regulation ±0.2%; low-to-high input at rated load.
Load regulation ±0.5%, measured over 10–100% load.
Ripple and noise 60 mVp-p maximum. Measured at 20 MHz bandwidth with a 12-inch twisted pair terminated with 0.1 µF and 47 µF capacitors.
Switching frequency 150 kHz minimum.
Maximum capacitive load 820 µF; the table does not specify a per-rail allocation.

Input and protection

Input voltage 9–18 V DC; 2:1 range.
Input current 30 mA at no load; 1600 mA at full load.
Typical efficiency 83% at the reference conditions.
Input filter and fuse Built-in EMI filter with Pi network. An external input fuse is recommended.
Overload protection 110–250% of rated output power; hiccup mode with automatic recovery after removal of the fault.
Short-circuit protection All outputs protected; hiccup mode with automatic recovery after removal of the fault.
Fault-duration limit Do not operate in overload or short circuit for longer than 30 seconds.
Optional configurations 4:1 input-range and 3 kV isolation versions are listed as options. These values do not replace this model’s standard 2:1 input and 1.5 kV isolation; confirm the requested configuration with the manufacturer.

Operating conditions and isolation

Operating temperature and cooling −40 to +71°C; free-air convection. Apply the load-derating limits.
Load derating Full load through 60°C; the curve shows 80% load at 71°C. Do not extend operation beyond the specified temperature range.
Working humidity 20–90% RH, non-condensing.
Storage conditions −40 to +105°C; 10–95% RH, non-condensing.
Temperature coefficient ±0.03%/°C over 0–50°C.
Vibration 10–500 Hz, 2G; 10 minutes per cycle for 60 minutes along each of the X, Y and Z axes.
Reference test conditions Normal input, rated load, 25°C and 70% RH, unless otherwise stated.
Input-to-output withstand voltage 1.5 kV DC.
Isolation resistance 100 MΩ at 500 V DC, 25°C and 70% RH.

Mechanical design and installation

Dimensions 50.8 × 25.4 × 11.27 mm (L × W × H).
Case construction Metal case with shielding on all six sides; 100% burn-in tested. The catalog describes a low-cost design with an emphasis on reliability.
Pin assignment 1 +Vin; 2 −Vin; 3 +Vout; 4 COM; 5 −Vout. Check the bottom-view orientation before PCB assembly.
Mechanical drawing details Lead length 5.8 mm; pin diameter 1 mm (+0.2/−0.1 mm); general tolerance ±0.5 mm.
Unit weight reference 31.2 g, explicitly stated as a catalog packing reference per unit.

EMC and manufacturer references

Safety and catalog references EAC TP TC 020/2011 approved.
EMC emission BS EN/EN 55032 Class A; FCC Part 15 Class A; EAC TP TC 020.
EMC immunity BS EN/EN 61000-4-2, -4-3, -4-4, -4-5, -4-6 and -4-8; light-industrial level, criterion A; EAC TP TC 020.
MTBF reference 300 khrs minimum to MIL-HDBK-217F at 25°C; a reliability reference, not a service-life guarantee.
Manufacturer warranty reference The catalog states a 2-year manufacturer warranty.

MEAN WELL DKA15 series: Isolated dual-output DC-DC converter - DKA15A-12

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DKA15A-12 — Isolated dual-output DC-DC converter MEAN WELL DKA15A-12 is an isolated, regulated dual-output DC-DC converter accepting 9–18 V DC.... Read more

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    Description

    DKA15A-12 — Isolated dual-output DC-DC converter

    MEAN WELL DKA15A-12 is an isolated, regulated dual-output DC-DC converter accepting 9–18 V DC. It provides ±12 V DC relative to COM with 62.5–625 mA per rail. It uses a 2 × 1 inch package and requires the specified minimum load.

    Download MEAN WELL DKA15 Datasheet (PDF)

    Series section: PDF pages 92–93.

    Model and output specifications

    Output voltage ±12 V DC relative to COM.
    Rated output current 62.5–625 mA per output rail.
    Series power and load limit 15 W. Observe the current range and power limit together.
    Minimum load Maintain the specified 62.5 mA minimum on each rail.
    Voltage accuracy ±2.0%
    Line regulation ±0.2%; low-to-high input at rated load.
    Load regulation ±0.5%, measured over 10–100% load.
    Ripple and noise 60 mVp-p maximum. Measured at 20 MHz bandwidth with a 12-inch twisted pair terminated with 0.1 µF and 47 µF capacitors.
    Switching frequency 150 kHz minimum.
    Maximum capacitive load 820 µF; the table does not specify a per-rail allocation.

    Input and protection

    Input voltage 9–18 V DC; 2:1 range.
    Input current 30 mA at no load; 1600 mA at full load.
    Typical efficiency 83% at the reference conditions.
    Input filter and fuse Built-in EMI filter with Pi network. An external input fuse is recommended.
    Overload protection 110–250% of rated output power; hiccup mode with automatic recovery after removal of the fault.
    Short-circuit protection All outputs protected; hiccup mode with automatic recovery after removal of the fault.
    Fault-duration limit Do not operate in overload or short circuit for longer than 30 seconds.
    Optional configurations 4:1 input-range and 3 kV isolation versions are listed as options. These values do not replace this model’s standard 2:1 input and 1.5 kV isolation; confirm the requested configuration with the manufacturer.

    Operating conditions and isolation

    Operating temperature and cooling −40 to +71°C; free-air convection. Apply the load-derating limits.
    Load derating Full load through 60°C; the curve shows 80% load at 71°C. Do not extend operation beyond the specified temperature range.
    Working humidity 20–90% RH, non-condensing.
    Storage conditions −40 to +105°C; 10–95% RH, non-condensing.
    Temperature coefficient ±0.03%/°C over 0–50°C.
    Vibration 10–500 Hz, 2G; 10 minutes per cycle for 60 minutes along each of the X, Y and Z axes.
    Reference test conditions Normal input, rated load, 25°C and 70% RH, unless otherwise stated.
    Input-to-output withstand voltage 1.5 kV DC.
    Isolation resistance 100 MΩ at 500 V DC, 25°C and 70% RH.

    Mechanical design and installation

    Dimensions 50.8 × 25.4 × 11.27 mm (L × W × H).
    Case construction Metal case with shielding on all six sides; 100% burn-in tested. The catalog describes a low-cost design with an emphasis on reliability.
    Pin assignment 1 +Vin; 2 −Vin; 3 +Vout; 4 COM; 5 −Vout. Check the bottom-view orientation before PCB assembly.
    Mechanical drawing details Lead length 5.8 mm; pin diameter 1 mm (+0.2/−0.1 mm); general tolerance ±0.5 mm.
    Unit weight reference 31.2 g, explicitly stated as a catalog packing reference per unit.

    EMC and manufacturer references

    Safety and catalog references EAC TP TC 020/2011 approved.
    EMC emission BS EN/EN 55032 Class A; FCC Part 15 Class A; EAC TP TC 020.
    EMC immunity BS EN/EN 61000-4-2, -4-3, -4-4, -4-5, -4-6 and -4-8; light-industrial level, criterion A; EAC TP TC 020.
    MTBF reference 300 khrs minimum to MIL-HDBK-217F at 25°C; a reliability reference, not a service-life guarantee.
    Manufacturer warranty reference The catalog states a 2-year manufacturer warranty.

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