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UEI-3.3-15-Q12PR-C Datasheet, PDF (1/13 Pages) Murata Power Solutions Inc. – 50-60W Isolated Wide-Range DC/DC Converters | |||
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www.murata-ps.com
UEI Series
50-60W Isolated Wide-Range DC/DC Converters
Featuring a full 50-60 Watt output in 2.9 square inches of board area,
the UEI series isolated DC/DC converter family offers efficient
regulated DC power for printed circuit board mounting.
Typical unit
FEATURES
 Small footprint DC/DC converter, ideal for high
current applications
 Industry standard 1.50Ë x 1.90Ë x 0.38Ë open
frame package and pinout
 Wide range input voltages 9-36 and 18-75Vdc
 Assembly and attachment for RoHS standards
 Isolation up to 2250 VDC (basic)
 Up to 50-60W total output power with
overtemperature shutdown
 High efï¬ciency synchronous rectiï¬er forward
topology
 Stable no-load operation with no required
external components
 â40 to +85°C temperature range with derating
 Meets UL60950-1, CSA-C22.2 No. 234,
EN60950-1, 2nd Edition safety approvals
 Extensive self-protection shut down features
 RoHS-6 compliant
PRODUCT OVERVIEW
Wide range 4:1 inputs on the 1.50" x 1.90" x
0.38" converter are either 9 to 36 Volts DC (Q12
models) or 18 to 75 Volts DC (Q48 models), ideal
for battery-powered and telecom equipment.
Fixed output voltages from 3.3 VDC to 15 VDC are
regulated to within ±0.05% and may be trimmed
within ±10% of nominal output. Applications
include small instruments, computer-based
systems, data communications equipment, remote
sensor systems, vehicle and portable electronics.
The UEI 50-60W Series includes full magnetic
and optical isolation up to 2250 Volts DC (basic
insulation). For connection to digital systems, the
outputs offer fast settling to current step loads
and tolerance of higher capacitive loads. Excellent
ripple and noise speciï¬cations assure compatibil-
ity to circuits using CPUâs, ASICâs, programmable
logic and FPGAâs. No minimum load is required.
For systems requiring controlled startup/shut-
down, an external switch, transistor or digital logic
may be used to activate the remote On/Off control.
Remote Sense inputs compensate for resistive line
drops at high currents.
A wealth of self-protection features avoid both
converter and external circuit problems. These
include input undervoltage lockout, input overvolt-
age and overtemperature shutdown. The outputs
current limit using the âhiccupâ autorestart
technique and the outputs may be short-circuited
indeï¬nitely. Additional features include output
overvoltage and reverse conduction elimination.
The synchronous rectiï¬er forward topology offers
high efï¬ciency for minimal heat buildup and âno
fanâ operation.
SIMPLIFIED SCHEMATIC
Ḥ
For full details go to
www.murata-ps.com/rohs
+VIN
âVIN
On/Off
Control
Control
Typical topology is shown.
GATE
DRIVE
ISOLATION
BARRIER
OPTO
ISOLATION
Reference, trim &
Error Amplifier
+VOUT
âVOUT
+SENSE
TRIM
âSENSE
www.murata-ps.com
email: sales@murata-ps.com
27 May 2010 MDC_UEI Series 50-60W.B31 Page 1 of 13
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