Data Sheet
July 1998
FC250A1 Power Module: dc-dc Converter;
18 Vdc to 36 Vdc Input, 5 Vdc Output; 50 W
The FC250A1 Power Modules use advanced, surface-mount
technology and deliver high-quality, compact dc-dc conver-
sion at an economical price.
Applications
■
Redundant and distributed power architectures
Options
■
Heat sinks available for extended operation
Features
■
Small size: 61.0 mm x 116.8 mm x 13.5 mm
(2.40 in. x 4.60 in. x 0.53 in.)
■
Wide input voltage range
■
High efficiency: 81% typical
■
Parallel operation with load sharing
■
Adjustable output voltage
■
Thermal protection
■
Synchronization
■
Power good signal
■
Current monitor
■
Output overvoltage and overcurrent protection
■
Constant frequency
■
Case ground pin
■
Input-to-output isolation
■
Remote Sense
■
Remote on/off
■
Short-Circuit protection
■
Output overvoltage clamp
■
UL* Recognized, CSA Certified, VDE Licensed
*
UL is a registered trademark of Underwriters Laboratories, Inc.
CSA is a registered trademark of Canadian Standards Associa-
tion.
Description
The FC250A1 Power Module is a dc-dc converters that operate over an input voltage range of 36 Vdc to 75 Vdc
and provide a precisely regulated dc output. The outputs are fully isolated from the inputs, allowing versatile
polarity configurations and grounding connections. The modules have maximum power ratings of 100 W at a
typical full-load efficiency of 85%.
The sealed modules offer a metal baseplate for excellent thermal performance. Threaded-through holes are
provided to allow easy mounting or addition of a heat sink for high-temperature applications. The standard fea-
ture set includes remote sensing, output trim, and remote on/off for convenient flexibility in distributed power
applications.