UWR Series
www.murata-ps.com
3 Watt, Single Output DC/DC Converters
FEATURES
PRODUCT OVERVIEW
Low Cost!
The 3 Watt, single-output, UWR Models of DATEL's
XWR Series DC/DC converters deliver impressive
9-18V ("D12" models) or an ultra-wide 18-72V
("D48" models). Transient response time is a quick
200μsec.
Fully automated, 100% SMT assembly
Industry-standard package and pinout
1.25" x 0.8", 24-pin DIP form factor
No external components required
5, 12 or 15 Volt outputs
levels of cost-effectiveness in an industry-standard
package and pinout. These highly-efficient (as
high as 76% guaranteed), fully isolated (1000Vdc
minimum), DIP-packaged power converters provide
true component-like convenience and flexibility to
designers of modern distributed power systems.
These extremely rugged modules are fully encap-
sulated with a thermally conductive potting com-
pound. They are moisture and vibration resistant
and have established a reputation for outstanding
MTBF. For telecommunication, computer and other
EMI-sensitive applications, these are the only DIP
Choice of 3 input voltage ranges:
4.5-9 Volts
Exploiting high-frequency (170-200kHz), flyback
9-18 Volts
topologies and contemporary, fully automated, SMT packaged DC/DC’s offering full EMI/EMC character-
assembly techniques, UWR Model DC/DC’s have
enough space to include input (pi type) and output
filters within their package. Requiring no external
components, these converters offer true "plug-and-
play" convenience. They operate over the full –25
to +75°C temperature range with no output power
derating.
ization data.
18-72 Volts
Guaranteed efficiencies to 76%
DATEL’s UWR Model 3W DC/DC’s are ideal replace-
ments for other more costly, less reliable power
converters as well as excellent choices for new
design-ins in systems demanding small size, low
cost and high reliability.
Fully isolated, 1000Vdc guaranteed
–25 to +75°C operation with no derating
Designed to meet UL/CSA/EN 60950-1 safety
approvals
EMI/EMC characterized
Output voltages are either 5, 12 or 15 Volts. Input
voltage ranges are either 4.5-9V ("D5" models),
Modifications and customs for OEM’s
SIMPLIFIED SCHEMATIC
+VOUT
+VIN
COMMON
–VIN
PWM
CONTROLLER
OPTO
ISOLATION
REFERENCE &
ERROR AMP
Typical topology is shown
For full details go to
www.murata-ps.com/rohs
www.murata-ps.com/support
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