HHD25 Просмотр технического описания (PDF) - Power-One Inc.

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HHD25

20/25A, Half-Brick DC/DC Converter

Power-One Inc. 

HHD25 Series – 20/25A, Half-Brick DC/DC Converter

24V/48V Input

Dual Output

Product Brief

Features

Applications

• Distributed power architectures

• Telecommunications equipment

• LAN/WAN applications

• Data processing applications

• 100/85 Watt total output power

• Independently regulated outputs

• Flexible load distribution

• Open-frame design with Insulated Metal

Substrate

• Low profile – 12.7mm height

• High efficiency - 87%

• Output voltage tracking

• Output overcurrent protection

• Output overvoltage protection

• Overtemperature protection

• Setpoint accuracy ± 1.5%

• Independent output voltage trim, positive or

negative

• Input/output isolation: 1500VDC, basic

insulation

• UL 1950 Recognition, CSA 22.2 No. 950-95

certification, TUV IEC950

Description

The HHD25 is a new series of high density Halfbrick size, High current, Dual output DC/DC converters with

through-hole mounting. The products provide onboard conversion of standard Telecom and Datacom input

voltages to two independently-regulated output voltages. Leading-edge technology provides extremely high

efficiency and superior thermal performance which enables the products to deliver full rated power at 55°C

ambient temperature with only 200 LFM forced air without addition of a heatsink. The outputs also track

each other during both startup and shutdown.

Model

HHD20ZGE

HHD20ZGB

HHD25ZED

HHD25ZEB

HHD20YGE

Input

voltage

range, VDC

36-72

36-72

36-72

36-72

18-36

Selection Chart

Input

Output Output rated

current, voltage, current, ADC

max, ADC VDC

3.6

5.0/3.3

20/20

3.6

5.0/1.8

20/20

3.1

3.3/2.5

25/20

3.1

3.3/1.8

25/20

7.2

5.0/3.3

20/20

Output Ripple

and Noise,

mV p-p

100

100

100

100

100

Typical

Efficiency

%

87

85

85

84

85

REV. 7/01

www.power-one.com

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