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Data Sheet
September 1997
FW050H, FW100H, FW150H Power Modules:
dc-dc Converters; 36 to 72 Vdc Input, 24 Vdc Output; 50 W to 150 W
The FW050H, FW100H, and FW150H Power Modules use
advanced, surface-mount technology and deliver high-quality,
compact, dc-dc conversion at an economical price.
Applications
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Distributed and redundant power architectures
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Telecommunications and PBX
Features
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Wide input range
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High efciency: 86% typical
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Parallel operation with load sharing
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Low prole: 12.7 mm (0.5 in.)
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Complete input and output ltering
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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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Remote on/off
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Short-circuit protection
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Output overvoltage clamp
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UL* Recognized, CSA Certied, VDE Licensed
*
UL is a registered trademark of Underwriters Laboratories, Inc.
CSA is a registered trademark of Canadian Standards Association.
Options
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Output voltage set-point adjustment (trim)
Description
The FW050H, FW100H, and FW150H Power Modules are dc-dc converters that operate over an input voltage
range of 36 Vdc to 72 Vdc and provide a precisely regulated dc output. The outputs are fully isolated from the
inputs, allowing versatile polarity congurations and grounding connections. The modules have maximum
power ratings from 50 W to 150 W at a typical full-load efciency of 86%.
Built-in ltering, for both the input and output of each device, eliminates the need for external lters. 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.