Datasheet
HWD Series – 75 Watt, Half-Brick DC/DC Converter
Wide Input Range
Dual Output
Features
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75 Watts total output power
Wide input range 18V – 60V
Independent dual outputs
Flexible load sharing
Open-frame design with IMS board
Low profile – 12.7mm height
Start-up into high capacitive load
Output overcurrent protection (self re-start)
Output overvoltage protection (self re-start)
Overtemperature protection (self re-start)
Setpoint accuracy
±
2.0%
Output voltage trim adjust, independent for
each output
Input/output isolation: 1500V
UL 1950 Recognition, CSA 22.2 No. 950-95
certification
Applications
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Distributed power architectures
Telecommunications equipment
LAN/WAN applications
Data processing applications
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Description
The HWD series provides onboard conversion of standard telecom and datacom input voltages into two isolated
low-voltage outputs. These products offer a unique combination of wide input range, low profile, and high current
capability. High efficiency and advanced thermal management enable these half-brick products to deliver full
rated power at 55°C ambient temperature, with 200 LFM airflow, without the addition of heatsinks.
Selection Chart
Model
Input
voltage
range, VDC
18-60
Input
current,
max, ADC
5.5
Output
voltage,
VDC
5.0/3.3
Output rated
current,
ADC
15/15
Output Ripple
and Noise,
mV p-p
100
Efficiency %
HWD075DGE-A
81% @ 24Vin
79% @ 48Vin
REV. 9/01
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