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UEI25-120 PDF Datasheet ( 特性, スペック, ピン接続図 )

部品番号 UEI25-120
部品説明 Low-profile Open-frame DC-DC Converters
メーカ Murata Manufacturing
ロゴ Murata Manufacturing ロゴ 



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UEI25-120 Datasheet, UEI25-120 PDF,ピン配置, 機能
www.murata-ps.com
UEI25-120 Serieswww.DataSheet4U.com
Single Output Isolated 25-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
„ Input voltage range of 36-75 Vdc
„ 12Vdc fixed output
„ Assembly and attachment for RoHS standards
„ Isolation up to 2250 VDC (basic)
„ Up to 25 Watts total output power with over-
temperature 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 (2nd
Edition)
„ Extensive self-protection shut down features
PRODUCT OVERVIEW
Featuring a full 25 Watt output in one square inch
of board area, the UEI25 series isolated DC/DC
converter family offers efficient regulated DC power
for printed circuit board mounting. The 0.96" x 1.1"
x 0.32" (24.38 x 27.94 x 8.13 mm) converter ac-
cepts a 2:1 input voltage range of 36 to 75 Volts DC,
ideal for telecom equipment. The industry-standard
pinout fits larger 1" x 2" converters. The fixed out-
put voltage is tightly regulated. Applications include
small instruments, area-limited microcontrollers,
data communications equipment, remote sensor
systems, telephone equipment, vehicle and portable
electronics.
The UEI25 series includes full magnetic and opti-
cal isolation with Basic protection up to 2250 Volts
DC. For powering digital systems, the outputs offer
fast settling to step transients and will accept higher
capacitive loads. Excellent ripple and noise speci-
fications assure compatibility to noise-susceptible
circuits. For systems requiring controlled startup/
shutdown, an external remote On/Off control may
use a switch, transistor or digital logic.
A wealth of self-protection features avoid both
converter and external circuit faults. These include
input undervoltage lockout and overtemperature
shutdown. The outputs current limit using the
“hiccup” autorestart technique and the outputs are
short-circuit protected. Additional features include
output overvoltage and reverse conduction elimina-
tion. The high efficiency offers minimal heat buildup
and “no fan” operation.
Contents
Description, Photograph, Connection Diagram
Ordering Guide, Model Numbering
Mechanical Specifications, Input/Output Pinout
UEI25-120-D48 Specifications and Performance Data
Application Notes
Page
1
2
3
4
8
F1 +Vin (1)
External
DC
Power
Source
On/Off
Control
(6)
Open = On
$MPTFE0GG
1PTJUJWF
polarity)
-Vin (2)
For full details go to
www.murata-ps.com/rohs
*TPMBUJPO
Barrier
Controller
and Power
5SBOTGFS
t4XJUDIJOH
t'JMUFST
t$VSSFOU4FOTF
Reference and
Error Amplifier
Figure 1. Connection Diagram
Typical topology is shown. Murata Power Solutions
recommends an external fuse.
www.murata-ps.com
+Vout (3)
Trim (4)
-Vout (5)
email: sales@murata-ps.com
23 Jun 2010 MDC_UEI25-120.A01 Page 1 of 11

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部品番号部品説明メーカ
UEI25-120

Low-profile Open-frame DC-DC Converters

Murata Manufacturing
Murata Manufacturing
UEI25-120-D48

Single Output Isolated 25-Watt DC/DC Converters

Murata
Murata

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