UWR-12/420-D24-C【PDF 1/5 页】CONV DC/DC 12V 420MA SINGLE

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www.murata-ps.com

FEATURES

UWR Models

Single Output, Miniature, 1" x 1", 5 Watt, DC/DC Converters

OBSOLETE PRODUCT

PRODUCT OVERVIEW

? Small size, 1" x 1" x 0.45"

? Full 5 Watts output power

? No external components required

? Drop-in replacements for many standard,

2" x 1" DC/DCs

? Wide input voltage ranges:

18-36V or 36-72V

? ? 12, or 15V outputs

? Guaranteed ef?ciencies to 80%

? Fully regulated and isolated

(1000Vdc guaranteed)

? Output overvoltage protection and current

limiting

? –25 to +95°C operating temperature

? Shielded cases (5 sides)

? ? 1950, CSA 22.2 No. 234, IEC 950

? Modi?cations and customs for OEM's

+V IN

The migration to distributed power is accelerat-

ing. The critical need for accurate voltages, tight

regulation and rapid transient response is propel-

ling the move to power processing at the "point-of-

use" with low-power DC/DC converters physically

located right at their loads.

DATEL’s miniature, full featured, 5 Watt UWR

Models were speci?cally designed for today’s

demanding distributed power architectures in

aerospace, marine, telecom and computer applica-

tions. The converters' low cost, small size (1" x

1" x 0.45") and full 5 Watt output capability give

system architects unprecedented design and layout

?exibility.

Occupying less than 0.5in 3 total volume, these

extremely compact, fully regulated and isolated

(1000Vdc guaranteed) modules are available with

either 5, 12 or 15 Volt outputs. Input voltage ranges

are either 18-36 Volts ("D24" models) or 36-72

Volts ("D48" models).

PWM

Although their overall size is 50-75% smaller

than many similarly rated power modules, these

1" x 1" UWR Models are exact, drop-in, pin-for-

pin replacements for many standard 2" x 1" and

2" x 2", 5 Watt modules. They achieve their small

size and low cost by exploiting a novel feedback

approach that does not depend upon traditional

optocoupler techniques.

All models are 5-side shielded and have a

non-conductive baseplate that permits pc-card

runs to be placed beneath the package. Units

are assembled using high-speed automated

SMT techniques and are fully encapsulated with

thermally conductive potting compound. Every unit

is electrically tested before and after encapsulation,

100% burned-in under full load, hi-pot tested, and

?nal-electrical tested prior to shipment. Every unit

meets DATEL’s traditional high standards for quality

and long-term reliability.

+V OUT

COMMON

* "D24" models only

Typical topology is shown

–V IN

Figure 1. Simpli?ed Block Diagram

For full details go to

www.murata-ps.com/rohs

www.murata-ps.com/support

UWR5W.D02 Page 1 of 5

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