Data Sheet
April 2008
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
n Small size: 71.1 mm x 61.0 mm x 12.7 mm
(2.80 in. x 2.40 in. x 0.50 in.)
n Low output noise
n Industry-standard pinout
n Metal case with separate case ground pin
n 2:1 input voltage range
n Remote on/off (positive logic)
n UL* Recognized, CSA
†
Certified, and VDE
Licensed
n Within FCC and CISPR Class A Radiated Limits
n CE mark meets 73/23/EEC and 93/68/EEC
directives
‡
n Two tightly regulated outputs
Applications
n Distributed power architectures
n Telecommunications
Options
n Higher-accuracy output voltage clamp set point
n Short pins: 2.79 mm ± 0.25 mm
(0.110 in. ± 0.010 in.)
n Heat sink available for extended operation
n 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 efficient 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 flexible enough to
provide modified standard units with any combination
of output voltages from 2 V to 15 V.
Efficiency 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.)
