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BWR-12 Datasheet, PDF (1/4 Pages) Murata Manufacturing Co., Ltd. – 3 Watt, Dual Output DC/DC Converters
www.murata-ps.com
BWR Series
3 Watt, Dual Output DC/DC Converters
FEATURES
Low Cost!
Automated, SMT-on-pcb construction
No external components required
±5, ±12 or ±15 Volt outputs
Choice of 3 input voltage ranges:
 4.5-9 Volts
 9-18 Volts
 18-72 Volts
1.25" x 0.8" x 0.45" DIP form factor
Industry-standard package and pinout
Fully isolated, 1000Vdc guaranteed
Guaranteed efficiencies to 78%
–25 to +75°C operation with no derating
UL 1950, CSA 22.2 No. 234 and IEC 950
EMI/EMC characterized
Modifications and customs for OEM’s
SIMPLIFIED SCHEMATIC
+VIN
PRODUCT OVERVIEW
Packaged in industry-standard DIP’s, the 3 Watt
dual-output models of DATEL’s XWR Series DC/DC
converters are fully regulated (±0.5% max. line,
±1% max. load), fully isolated (1000Vdc minimum),
extremely efficient (as high as 78% guaranteed)
building blocks providing true component-like
flexibility and convenience to designers of modern
distributed power systems.
Exploiting high-frequency (170-200kHz), flyback
topologies and contemporary,
highly automated, SMT assembly techniques, BWR
Model DC/DC’s have enough room to include input
(pi type) and output filters within their package.
Offering true "plug-and-play" convenience, these
power converters require no external components.
They operate over the full –25 to +75°C tempera-
ture range with no output power derating.
Output voltages are either ±5, ±12 or ±15 Volts.
Input voltage ranges are either
4.5-9V ("D5" models), 9-18V ("D12" models) or
an ultra-wide 18-72V ("D48" models). Transient
response time is a quick 200μsec.
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 DIP-packaged
DC/DC converters offer full EMI/EMC characteriza-
tion data.
Industry-standard pinouts make DATEL’s BWR
Model 3W DC/DC’s ideal replacements for other
more costly, less reliable power converters. Simi-
larly, they are excellent choices for new design-ins
in systems demanding small size, low cost and
high reliability.
+VOUT
COMMON
–VIN
–VOUT
PWM
CONTROLLER
OPTO
ISOLATION
REFERENCE &
ERROR AMP
Ḥ
For full details go to
www.murata-ps.com/rohs
www.murata-ps.com/support
Typical topology is shown
MDC_BWR3W.B03 Page 1 of 4