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Data Sheet
June 1997
DW025 Dual Output-Series Power Modules: dc-dc Converters;
36 Vdc to 75 Vdc Input; Dual Outputs; 25 W
The DW025-Series Power Modules use advanced, surface-
mount technology and deliver high-quality, compact, dc-dc
conversion at an economical price.
Features
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Small size: 71.1 mm x 61.0 mm x 12.7 mm
(2.80 in. x 2.40 in. x 0.50 in.)
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Low output noise
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Industry-standard pinout
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Metal case with separate case ground pin
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2:1 input voltage range
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Remote on/off (positive logic)
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UL* Recognized, CSA Certied, and VDE
Licensed
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Within FCC and CISPR Class A Radiated Limits
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CE mark meets 73/23/EEC and 93/68/EEC
directives
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Two tightly regulated outputs
Applications
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Distributed power architectures
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Telecommunications
Options
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Higher-accuracy output voltage clamp set point
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Short pins: 2.79 mm ± 0.25 mm
(0.110 in. ± 0.010 in.)
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Heat sink available for extended operation
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Negative logic remote on/off
Description
The DW025-Series Power Modules are a family of
dc-dc converters that operate over an input voltage
range of 36 Vdc to 75 Vdc and provide two regulated
outputs. These modules offer low noise levels with
industry-standard pinouts in a small footprint. Each
highly reliable and efcient unit features remote
on/off and current limit.
Each output is individually regulated by its own con-
trol circuit and has an independent overvoltage
clamp. With standard outputs of +3.3 V, ±5 V, ±12 V,
and ±15 V, the DW025-Series is exible enough to
provide modied standard units with any combination
of output voltages from 2 V to 15 V.
Efciency greater than 80%, a wide operating tem-
perature range, and a metal case are additional fea-
tures of these modules. They have
UL, CSA, and VDE
recognition and operate within FCC and CISPR Class
A limits for radiated emissions.
The DW025AJ-M, BK-M, and CL-M Power Modules
are available with common output ground pins
(pinout A); the DW025AA-M, AB-M, AF-M, BB-M,
and CC-M Power Modules are available with sepa-
rate output ground pins (pinout B).
*
UL is a registered trademark of Underwriters Laboratories, Inc.
CSA is a registered trademark of the Canadian Standards Asso-
ciation.
This product is intended for integration into end-use equipment.
All the required procedures for CE marking of end-use equip-
ment should be followed. (The CE mark is placed on selected
products.)