Datenblatt-pdf.com


UEI25-120 Schematic ( PDF Datasheet ) - Murata Manufacturing

Teilenummer UEI25-120
Beschreibung Low-profile Open-frame DC-DC Converters
Hersteller Murata Manufacturing
Logo Murata Manufacturing Logo 




Gesamt 11 Seiten
UEI25-120 Datasheet, Funktion
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)
23 Jun 2010 MDC_UEI25-120.A01 Page 1 of 11






UEI25-120 Datasheet, Funktion
UEI25-120 Serieswww.DataSheet4U.com
Single Output Isolated 25-Watt DC/DC Converters
UEI25-120-D48 PERFORMANCE DATA
Efficiency vs. Line Voltage and Load Current @ 25°C
89
88
87
86
85 Vin = 36V
84 Vin = 48V
Vin = 60V
83 Vin = 75V
82
81
80
79
78
0.4 0.6 0.8 0.9 1.1 1.3 1.4 1.6 1.8 1.9 2.1
Load Current (Amps)
Power Dissipation vs. Load Current @ 25°C
4.46
3.96
3.46
2.96
2.46
1.96
Vin = 36V
Vin = 48V
1.46
Vin = 60V
Vin = 75V
0.96
0.46
0.4 0.6 0.8 0.9 1.1 1.3 1.4 1.6 1.8 1.9 2.1
Load Current (Amps)
Maximum Current Temperature Derating @sea level
(VIN = 36V, airflow is from pin 1 to pin 3)
2.25
2.2
2.15
65 LFM
2.1 100 LFM
200 LFM
2.05 300 LFM
1.95
1.9
65
70 75
Ambient temperature (°C)
80
Maximum Current Temperature Derating @sea level
(VIN = 48V, airflow is from pin 1 to pin 3)
2.2
2.175
2.15
2.125
2.1
2.075
2.05
2.025
85
2
65
65 LFM
100 LFM
200 LFM
70 75 80
Ambient temperature (°C)
85
Maximum Current Temperature Derating @sea level
(VIN = 60V, airflow is from pin 1 to pin 3)
2.2
2.175
2.15
2.125
2.1
2.075
2.05
2.025
2
65
65 LFM
100 LFM
200 LFM
70 75 80
Ambient temperature (°C)
Maximum Current Temperature Derating @sea level
(VIN = 75V, airflow is from pin 1 to pin 3)
2.2
2.15
2.1
65 LFM
100 LFM
2.05 200 LFM
300 LFM
1.95
1.9
85 65
70 75 80
Ambient temperature (°C)
85
www.murata-ps.com
23 Jun 2010 MDC_UEI25-120.A01 Page 6 of 11

6 Page







SeitenGesamt 11 Seiten
PDF Download[ UEI25-120 Schematic.PDF ]

Link teilen




Besondere Datenblatt

TeilenummerBeschreibungHersteller
UEI25-120Low-profile Open-frame DC-DC ConvertersMurata Manufacturing
Murata Manufacturing
UEI25-120-D48Single Output Isolated 25-Watt DC/DC ConvertersMurata
Murata

TeilenummerBeschreibungHersteller
CD40175BC

Hex D-Type Flip-Flop / Quad D-Type Flip-Flop.

Fairchild Semiconductor
Fairchild Semiconductor
KTD1146

EPITAXIAL PLANAR NPN TRANSISTOR.

KEC
KEC


www.Datenblatt-PDF.com       |      2020       |      Kontakt     |      Suche