WP05R Datasheet, PDF (1/4 Pages) C&D Technologies – 5 WATT UNREGULATED SMALL PACKAGE DC/DC CONVERTER

Product Data Sheet
5 WATT REGULATED
SMALL PACKAGE DC/DC CONVERTER
WP05R
FEATURES
SMALL PACKAGE SIZE: 1" X 2"
INDUSTRY STANDARD PINOUT
SURFACE MOUNT DEVICES (SMD)
LOW-COST ALTERNATE SOURCE
CONTINUOUS SHORT CIRCUIT PROTECTION
UL1950 RECOGNITION
(SOME MODELS PENDING)
MEETS FCC CLASS B
APPLICATIONS
TELECOMMUNICATION EQUIPMENT
BATTERY POWERED SYSTEMS
PORTABLE INSTRUMENTS
PROCESS CONTROL EQUIPMENT
TRANSPORTATION EQUIPMENT
DISTRIBUTED POWER SYSTEMS
SPACE-CRITICAL APPLICATIONS
DESCRIPTION
The WP05R Series is a family of high performance DC/DC
converters that offer high efficiency and regulated outputs
over a 2:1 input voltage range of either 18-36VDC or 36-
72 VDC.
Surface mount devices and manufacturing technology make
it possible to offer performance equivalent to competition
at a lower cost.
A self oscillating flyback topology coupled with a rugged
MOSPOWER transistor are used to produce a highly reli-
able product with a minimum parts count. The internal
body diodes of these FETS protect the unit against input
voltage reversal. An external fuse is required to limit the
body diode current to 2 amps.
The WP05R Series offers low noise (approximately 50 to
75mVp-p) without the addition of an external capacitor.
The series is also 6-sided shielded, further reducing
system noise. This shield is connected to -VIN.
No external heatsink is required for the WP05R Series
to supply its rated 5 watts. With a minimum amount of
airflow, the temperature range may be extended from
70°C to 85°C. (See derating curve.)
The package of the WP05R Series is plastic. This
eliminates the layout precautions required by metal
enclosed devices. The encapsulant material is rated
UL94V-0 for flammability and offers excellent heat
transfer characteristics.
Internal circuitry provides continuous short-circuit pro-
tection and automatic restart after the short is removed.
3400 E Britannia Drive
WP05R 5/98 REV B
Tucson, Arizona 85706
Phone: [phone]
Fax: [phone]
Internet: http://www.cdpowerelectronics.com
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