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.
PRODUCT OVERVIEW
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
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
Description, Photograph, Connection Diagram
Ordering Guide, Model Numbering
Mechanical Specifications, Input/Output Pinout
Detailed Electrical Specifications
Application Notes
Soldering Guidelines
Performance Data
Page
1
2
3
6
8
11
12
SIMPLIFIED SCHEMATIC
+V
OUT
+V
IN
–V
OUT
On/Off
Control
Control
GATE DRIVE
ISOLATION BARRIER
−V
IN
ISOLATION
Reference, Trim &
Error Amplifier
TRIM
3.3V and 5V
OUT
models only.
For full details go to
www.murata-ps.com/rohs
Typical topology is shown.
www.murata-ps.com
20 Apr 2010
email: sales@murata-ps.com
MDC_UEI15W.B37
Page 1 of 14
UEI15 Series
Isolated Wide Input Range 15-Watt DC/DC Converters
PERFORMANCE SPECIFICATIONS AND ORDERING GUIDE
➀
Output
R/N (mVp-p)
➁
Regulation (Max.)
Root Models
➀
UEI15-033-Q12
UEI15-033-Q48
UEI15-050-Q12
UEI15-050-Q48
UEI15-120-Q12
UEI15-120-Q48
UEI15-150-Q12
UEI15-150-Q48
V
OUT
I
OUT
Power
(V) (A)e (W)
3.3
3.3
5
5
12
12
15
15
4.5
5
3
3
1.3
1.3
1.1
1.1
14.85
16.5
15
15
15.6
15.6
16.5
16.5
Input
I
IN
=
no
V
IN
Nom. Range load
(V)
(V) (mA)
24
48
24
48
24
48
24
48
9-36
18-75
9-36
18-75
9-36
18-75
9-36
18-75
43
24
41
28
15
15
18
14
I
IN
=
full
load
(A)
0.71
0.4
0.72
0.36
0.77
0.38
0.81
0.4
Efficiency
Open Frame
Package – C75
Case
Pinout
Typ.
60
60
70
60
110
85
130
80
Max.
90
90
125
95
150
120
175
120
Line
±0.05%
±0.2%
±0.05%
±0.05%
±0.05%
±0.05%
Load
±0.1%
±0.2%
±0.06%
±0.05%
±0.05%
±0.05%
Min.
86.5%
Typ.
89%
(inches)
(mm)
86.5% 88.8%
86.3% 87.3%
84.3% 86.0%
82.3% 84.5%
83.3%
83.5%
85%
85%
1.1×0.96×0.32
27.9×24.4×8.1
P85
±0.05% ±0.075%
±0.0 75% ±0.05%
83.3% 85.3%
➀
Please refer to the part number structure for additional options and complete
ordering part numbers.
➁
All specifications are typical at nominal line voltage and full load, +25 deg.C. unless
otherwise noted. See detailed specifications.
PART NUMBER STRUCTURE
➂
Minimum output load for UEI15-033-Q12, UEI15-120-Q12 and UEI15-050-Q12 is
10% of maximum current.
➃
RoHS-6 compliance does not claim EU RoHS exemption 7b (lead in solder).
UEI15
-
033
-
Q12
Unipolar Wide Input
15-Watt Series
Nominal Output Voltage
in Tenths of a Volt
P M Lx
-
C
RoHS-6 Hazardous
Substance Compliance (note 4)
Pin Length Option
Blank
= Std. pin length 0.25˝ (6.3mm)
L1
= 0.110˝ (2.79mm)
Alternate pin lengths
L2
= 0.145˝ (3.68mm)
require quantity order.
}
Input Voltage Range
Q12 = 9-36V
Q48 = 18-75V
Surface Mount Option
Blank = Standard through-hole pin mount version
M = SMT version (Preliminary – contact Murata Power Solutions for availability.)
On/Off Control Polarity:
P = Positive
N = Negative
Note:
Some model number combinations
may not be available.
Contact Murata Power Solutions.
www.murata-ps.com
20 Apr 2010
email: sales@murata-ps.com
MDC_UEI15W.B37
Page 2 of 14
UEI15 Series
Isolated Wide Input Range 15-Watt DC/DC Converters
MECHANICAL SPECIFICATIONS, OPEN FRAME
Case 75
TOP VIEW
27.9
1.10
PIN #1
PHYSICAL CHARACTERISTICS
24.4
0.96
Copper alloy
0.04˝ (1.016mm)
Gold plate
0.352 oz./10 grams
EN55022/CISPR22 (see note 1)
Electromagnetic Interference
(Requires external filter)
Flammability Rating
UL 94V-0
UL/cUL 60950-1, CAN/CSA-
Safety
C22.2-60950-1, IEC/EN 60950-1
Dimensions are in inches (mm shown for ref. only).
Third Angle Projection
Pin Material
Pin Diameter
Pin Finish
Weight
INPUT/OUTPUT CONNECTIONS
Pin
Function P85
1
2
Positive Vin
Negative Vin
Positive Vout
Output Trim
Negative Vout
On/Off Control*
MOUNTING
PLANE
SIDE VIEW
8.1
0.32 MAX
Tolerances (unless otherwise specified):
.XX ± 0.02 (0.5)
.XXX ± 0.010 (0.25)
Angles ± 1˚
Components are shown for reference only.
3
4
5
6
*The Remote On/Off can be provided
with either positive (P suffix) or nega-
tive (N suffix) polarity
BOTTOM VIEW
C
L
#5
10.16
0.400
.30
#4
.040±.002
.071 .002 SHOULDER
6X AT PINS 1-6
END VIEW
#6
0.475
REF
#2
#1
C
L
0.41
2.54
0.100
5.08
0.200
10.16
0.400
C
L
10.16
0.400
#3
RECOMMENDED
PRI-SEC BARRIER
0.15 TYP
0.58
20.32
0.800
6.3
0.25
Standard pin length is shown. Please refer to
the Ordering Guide for alternate pin lengths.
www.murata-ps.com
20 Apr 2010
email: sales@murata-ps.com
MDC_UEI15W.B37
Page 3 of 14
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