UEI15 Series
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Isolated Wide Input Range 15-Watt DC-DC Converters
Typical unit
Featuring a full 15 Watt or greater output in one square inch of board area, the UEI
series isolated DC/DC converter family offers effi cient regulated DC power for printed
circuit board mounting.
FEATURES PRODUCT OVERVIEW
Small footprint DC/DC converter, ideal for Wide range 4:1 inputs on the 0.96" x 1.1" x 0.33" and noise specifi cations assure compatibility to
converter are either 9 to 36 Volts DC (Q12 models) circuits using CPUs, ASICs, programmable logic
high current applications
or 18 to 75 Volts DC (Q48 models), ideal for battery- and FPGAs. For systems requiring controlled
Industr y standard 0.96" x 1.1" X 0.33" open
powered and telecom equipment. The industry- startup/shutdown, an external switch, transis-
frame package and pinout
standard pinout fi ts larger 1" x 2" converters. Fixed tor or digital logic may be used to activate the
Wide range input voltages 9-36 and 18-75 Vdc
output voltages from 3.3 VDC to 15 VDC are regu- remote On/Off control.
lated to within 0.2% or less and may be trimmed A wealth of self-protection features avoid both
Assembly and a ttachment for RoHS standards
within 10% of nominal output. Applications converter and external circuit problems. These
Isola tion up to 2250 VDC (basic)
include small instruments, area-limited microcon- include input undervoltage lockout and overtem-
Up to 15 Watts or greater total output power trollers, computer-based systems, data communi- perature shutdown. The outputs current limit using
with overtemperature shutdown cations equipment, remote sensor systems, vehicle the hiccup autorestart technique and the outputs
and portable electronics. may be short-circuited indefi nitely. Additional
High effi ciency synchronous rectifi er forward
The UEI 15W series includes full magnetic and features include output overvoltage and reverse
topology
optical isolation up to 2250 Volts DC (basic insula- conduction elimination.
Stable operation with no required external
tion). For connection to digital systems, the outputs The high effi ciency offers minimal heat buildup
components
offer fast settling to current step loads and toler- and no fan operation.
ance of higher capacitive loads. Excellent ripple
Usable -40 to 85C temperature range (with
derating)
Certifi ed 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
+VOUT
+VIN
VOUT
On/Off
Control
Control
GATE DRIVE
ISOLATION BARRIER
VIN Reference, Trim &
ISOLATION TRIM
Error Amplier
Figure 1. Simplifi ed block diagram3.3V and 5V out models only. Typical topology is shown.
For full details go to
www.murata-ps.com/rohs
www.murata-ps.com/support
MDC_UEI15W.C18 Page 1 of 17UEI15 Series
Isolated Wide Input Range 15-Watt DC-DC Converters
PERFORMANCE SPECIFICATIONS SUMMARY AND ORDERING GUIDE
Output Input
Open Frame
R/N (mVp-p) Regulation (Max.) Iin = Iin = Efficiency Package C75
Vin no full
Vout Iout Power Nom. Range load load Case
Root Models (V) (A) (W) Typ. Max. Line Load (V) (V) (mA) (A) Min. Typ. (inches) (mm) Pinout
UEI15-033-Q12 3.3 4.5 14.85 60 90 0.05% 0.1% 24 9-36 43 0.71 86.5% 89%
UEI15-033-Q48 3.3 5 16.5 60 90 0.2% 0.2% 48 18-75 24 0.4 85.5% 88%
UEI15-050-Q12 5 3 15 70 125 0.05% 0.075% 24 9-36 41 0.72 86.3% 87.3%
UEI15-050-Q48 5 3 15 60 95 0.05% 0.06% 48 18-75 28 0.36 84.3% 86.0%
1.10.960.33 27.924.48.4 P85
UEI15-120-Q12 12 1.3 15.6 110 150 0.05% 0.05% 24 9-36 15 0.77 82.3% 84.5%
UEI15-120-Q48 12 1.3 15.6 85 120 0.0 75% 0.05% 48 18-75 15 0.38 83.3% 85%
UEI15-150-Q12 15 1.1 16.5 130 175 0.05% 0.05% 24 9-36 18 0.81 83.5% 85%
UEI15-150-Q48 15 1.1 16.5 80 120 0.05% 0.05% 48 18-75 14 0.4 83.3% 85.3%
Please refer to the part number structure for additional options and complete Minimum output load for all models is 10% of maximum current.
ordering part numbers. RoHS-6 compliance does not claim EU RoHS exemption 7b (lead in solder).
All specifications are typical at nominal line voltage and full load, +25 deg.C. unless
otherwise noted. See detailed specifications.
PART NUMBER STRUCTURE
UEI15 - 033 - Q12 P M H Lx - C
RoHS-6 Hazardous
Substance Compliance (note 4)
Unipolar Wide Input
15-Watt Series
Pin Length Option
Blank = Std. pin length 0.25 (6.3mm)
Nominal Output Voltage
Conformal Coating Option L1 = 0.110 (2.79mm)
in Tenths of a Volt
Blank = No coating, standard
L2 = 0.145 (3.68mm)
H = Coating added, optional
(Built to order; contact Murata Power Solutions for MOQ and lead times.
Not available on SMT models.)
Input Voltage Range
Surface Mount Option
Q12 = 9-36V
Blank = Standard through-hole pin mount version
Q48 = 18-75V
M = SMT version (MSL rating 2)
On/Off Control Logic:
P = Positive
N = Negative
Special quantity order is required; samples available with standard pin length only.
SMT (M) versions not available in sample quantities.
Some model number combinations may not be available. See website or contact your local Murata sales representative.
SPECIAL CUSTOMER CONFIGURATION PART NUMBERS:
1) UEI-31204-C (Restricted AVL and surface mount package)
2) UEI15-050-Q12PH-31331 (5Vout @ 15W, Positive Logic, Conformal Coating, Hi-pot Tested to 2,000Vrms)
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MDC_UEI15W.C18 Page 2 of 17