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Typical units
FEATURES
?
? Low cost! Highly reliable!
?
?
? Proven SMT-on-pcb construction
? Designed to meet UL/ EN60950,
BASIC insulation (D48A models)
?
? ? mark available (48VIN models)
? Output voltages: 3.3/5/5.2/12/15 Volts
?
? Ultra-wide input voltage ranges:4.7-7.5V, 9-36V
or 18-75V
?
?
? Small packages, 2" x 2" x 0.45"
? Industry-standard pinouts
?
?
? Fully isolated, 1500Vdc guaranteed
? Guaranteed ef?ciencies to 84%
?
?
? –40 to +100°C operating temperature
? Modi?cations and customs for OEM’s
+V IN
(1)
UWR Series
Single Output, High Reliability, 2" x 2", 14-20 Watt, DC/DC Converters
NOT RECOMMENDED
FOR NEW DESIGNS
PRODUCT OVERVIEW
DATEL's new A-Series switching DC/DC converters are designed to meet the demanding long-
term-reliability and low-cost requirements of modern telecom,
datacom, computer/networking and industrial-electronics applications. These highly-ef?cient, rugged
devices combine straightforward circuit topologies, new components, proven SMT-on-pcb construc-
tion methods, and highly repeatable automatic-assembly techniques. The ?exibility of the designs and
their assembly methods readily permit
minor modi?cations to optimize performance for speci?c applications.
The single-output, 14-20 Watt Models of the A-Series deliver both high power densities and
impressive MTBF’s.
Packaged in standard, 2" x 2" x 0.45", shielded metal cases with non-conductive coatings, these
fully isolated (1500Vdc minimum) DC/DC’s offer excellent line/load regulation, full I/O protection,
thermal shutdown, and industry-standard pinouts.
Output voltages include 3.3, 5, 5.2, 12 or 15 Volts. Input voltage ranges are DATEL's traditional
ultra-wide 9-36V and 18-75V, as well as 4.7-7.5V. Each device provides remote on/off control and
V OUT trim capability. All A-Series UWR models are fully EMI characterized and designed to meet
UL1950, CSA 950 and IEC 950 safety.
A-Series DC/DC’s are extremely reliable, easy-to-use, cost-effective power converters. Use them
to improve the reliability of existing equipment or to develop
new systems that exceed design objectives.
+V OUT
(6)
COMMON
(7)
–V IN
(2)
ON/OFF
CONTROL
PWM
CONTROLLER
OPTO
ISOLATION
REFERENCE &
ERROR AMP
+V OUT
TRIM
(4)
Figure 1. Simpli?ed Schematic
(8)
Typical topology is shown.
　
For full details go to
www.murata-ps.com/rohs
www.murata-ps.com/support
MDC_UWR14-20 Series.F02 Page 1 of 6
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