UEI15_10 Datasheet, PDF (1/14 Pages) Murata Power Solutions Inc. – Isolated Wide Input Range 15-Watt DC/DC Converters

www.murata-ps.com
UEI15 Series
Isolated Wide Input Range 15-Watt DC/DC Converters
Typical unit
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)
„ Meets UL 60950-1, CAN/CSA-C22.2 No. 60950-
1, IEC60950-1, EN60950-1 safety approvals
„ Extensive self-protection shut down features
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.
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.
Contents
Page
Description, Photograph, Connection Diagram
1
Ordering Guide, Model Numbering
2
Mechanical Specifications, Input/Output Pinout
3
Detailed Electrical Specifications
6
Application Notes
8
Soldering Guidelines
11
Performance Data
12
SIMPLIFIED SCHEMATIC
+VOUT
+VIN
Ḥ
For full details go to
www.murata-ps.com/rohs
On/Off
Control
Control
−VIN
3.3V and 5VOUT models only.
www.murata-ps.com
GATE DRIVE
–VOUT
ISOLATION BARRIER
ISOLATION
Reference, Trim &
TRIM
Error Amplifier
Typical topology is shown.
email: [e-mail]
20 Apr 2010 MDC_UEI15W.B37 Page 1 of 14