Data Sheet
April 03, 2008
FW400R1 Power Module; dc-dc Converter:
36 Vdc to 75 Vdc Input, 28 Vdc Output; 400 W
The FW400R1 Power Module uses advanced, surface-mount
technology and delivers high-quality, compact, dc-dc
conversion at an economical price.
Applications
n
Redundant and distributed power architectures
n
Computer equipment
n
Communications equipment
Options
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Heat sinks available for extended operation
Features
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Size: 61.0 mm x 116.8 mm x 13.5 mm
(2.40 in. x 4.60 in. x 0.53 in.)
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Wide input voltage range
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High efficiency: 89.5% typical
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Parallel operation with load sharing
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Output voltage set-point adjustment (trim)
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Synchronization
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Power good signal
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Output current monitor
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Output overvoltage, overtemperature, and overcur-
rent protection
n
Constant frequency
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Case ground pin
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Input-to-output isolation
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Remote sense
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Negative remote on/off logic
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Manufacturing facilities registered against the
ISO* 9000 series standards
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UL 60950 Recognized, CSA C22.2 No. 60950-
00 Certified, and VDE § 0805 (IEC **60950, 4th
Edition) Licensed
n
CE mark meets 73/23/EEC and 93/68/EEC direc-
tives
Description
The FW400R1 Power Module is a dc-dc converter that operates over an input voltage range of 36 Vdc to 75
Vdc and provides a precisely regulated dc output. The outputs are fully isolated from the inputs, allowing versa-
tile polarity configurations and grounding connections. The module has a maximum power rating of 400 W at a
typical full-load efficiency of 89.5%.
Two or more modules may be paralleled with forced load sharing for redundant or enhanced power applications.
The package, which mounts on a printed-circuit board, accommodates a heat sink for high-temperature
applications.
*
ISO is a registered trademark of the International Organization for Standardization.
UL is a registered trademark of Underwriters Laboratories, Inc.
CSA is a registered trademark of Canadian Standards Association.
§ VDE is a trademark of Verband Deutscher Elektrotechniker e.V.
** IEC is a trademark of International Elecktrotechniker Commission.
This product is intended for integration into end-use equipment. All the required procedures for CE marking of end-use equipment should
be followed. (The CE mark is placed on selected products.)