UEI15-033-Q12NML2-C 查看數據表（PDF） - Murata Manufacturing
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UEI15-033-Q12NML2-C Datasheet PDF : 16 Pages
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www.murata-ps.com
Typical unit
UEI15 Series
Isolated Wide Input Range 15-Watt DC/DC Converters
Featuring a full 15 Watt or greater output in one square inch of board area, the UEI
series isolated DC/DC converter family offers efficient regulated DC power for printed
circuit board mounting.
FEATURES
Small footprint DC/DC converter, ideal for
high current applications
Industry standard 0.96" x 1.1" X 0.32" open
frame package and pinout
Wide range input voltages 9-36 and 18-75 Vdc
Assembly and attachment for RoHS standards
Isolation up to 2250 VDC (basic)
Up to 15 Watts or greater total output power
with overtemperature shutdown
High efficiency synchronous rectifier forward
topology
Stable operation with no required external
components
Usable -40 to 85°C temperature range (with
derating)
Certified to UL 60950-1, CAN/CSA-C22.2 No.
60950-1, IEC60950-1, EN60950-1 safety ap-
provals, 2nd edition
Extensive self-protection shut down features
PRODUCT OVERVIEW
Wide range 4:1 inputs on the 0.96" x 1.1" x 0.32"
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. The industry-
standard pinout fits larger 1" x 2" converters. Fixed
output voltages from 3.3 VDC to 15 VDC are regu-
lated to within ±0.2% or less and may be trimmed
within ±10% of nominal output. Applications
include small instruments, area-limited microcon-
trollers, computer-based systems, data communi-
cations equipment, remote sensor systems, vehicle
and portable electronics.
The UEI 15W series includes full magnetic and
optical isolation up to 2250 Volts DC (basic insula-
tion). For connection to digital systems, the outputs
offer fast settling to current step loads and toler-
ance of higher capacitive loads. Excellent ripple
and noise specifications assure compatibility to
circuits using CPU’s, ASIC’s, programmable logic
and FPGA’s. For systems requiring controlled
startup/shutdown, an external switch, transis-
tor or digital logic may be used to activate the
remote On/Off control.
A wealth of self-protection features avoid both
converter and external circuit problems. These
include input undervoltage lockout and overtem-
perature shutdown. The outputs current limit using
the “hiccup” autorestart technique and the outputs
may be short-circuited indefinitely. Additional
features include output overvoltage and reverse
conduction elimination.
The high efficiency offers minimal heat buildup
and “no fan” operation.
+VOUT
+VIN
On/Off
Control
Control
GATE DRIVE
–VOUT
ISOLATION BARRIER
−VIN
ISOLATION
Reference, Trim &
TRIM
Error Amplifier
Figure 1. Simplified block diagram—3.3V and 5VOUT models only. Typical topology is shown.
For full details go to
www.murata-ps.com/rohs
www.murata-ps.com
email: sales@murata-ps.com
14 Mar 2011 MDC_UEI15W.B42 Page 1 of 16
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