Datasheet

HWD Series – 75 Watt, Half-Brick DC/DC Converter

Wide Input Range

Dual Output

REV. 9/01

www.power-one.com

Applications

•

Distributed power architectures

•

Telecommunications equipment

•

LAN/WAN applications

•

Data processing applications

Features

•

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

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

Input

current,

max, ADC

Output

voltage,

VDC

Output rated

current,

ADC

Output Ripple

and Noise,

mV p-p

Efficiency %

HWD075DGE-A

18-60

5.5

5.0/3.3

15/15

100

81% @ 24Vin

79% @ 48Vin