MURATA UEI15 Technical data

GATE DRIVE

Control

Reference, Trim &

Error Amplifier

+VIN

−VIN

+VOUT

–VOUT

On/Off

Control

TRIM

ISOLATION BARRIER

OPTO

ISOLATION

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.

FEATURES

nSmall footprint DC/DC converter, ideal for

high current applications

nIndustry standard 0.9" x 1.1" X 0.335"

open frame package and pinout

nWide range input voltages 9-36 and

18-75 Vdc

nDouble lead-free assembly and attachment

for RoHS standards

n2250 Volt Basic Isolation (Q48 models)

n

Up to 15 Watts or greater total output
power with overtemperature shutdown

nHigh efficiency synchronous rectifier

forward topology

nStable no-load operation with no required

external components

nUsable -40 to 85°C temperature range

(with derating)

nDesigned to meet UL 60950-1, CAN/CSA-

C22.2 No. 60950-1, IEC60950-1,
EN60950-1 safety approvals

nExtensive self-protection shut down

features

PRODUCT OVERVIEW

Wide range 4:1 inputs on the 0.9" x 1.1" x 0.335"
converter are either 9 to 36 Volts DC (Q12 models)
or 18 to 75 Volts DC (Q48 models), ideal for battery­powered and telecom equipment. The industry­standard pinout fits larger 1" x 2" converters. Fixed
output voltages from 3.3 VDC to 15 VDC are regu­lated to within ±0.2% or less and may be trimmed
within ±10% of nominal output. Applications
include small instruments, area-limited microcon­trollers, computer-based systems, data communi­cations equipment, remote sensor systems, vehicle
and portable electronics.

Full magnetic and optical isolation includes
Basic protection up to 2250 (Q48 models) Volts DC.
For connection to digital systems, the outputs offer
fast settling to current step loads and tolerance of
higher capacitive loads. Excellent ripple and noise

SIMPLIFIED SCHEMATIC

specifications assure compatibility to circuits
using CPU’s, ASIC’s, programmable logic and
FPGA’s. 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 problems. These
include input undervoltage lockout and overtem­perature 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.

www.murata-ps.com/rohs

For full details go to

Typical topology is shown.3.3V and 5Vo u t models only.

www.murata-ps.com Technical enquiries email: [e-mail], tel: [phone]

MDC_UEI15W.B12 Page 1 of 12

UEI15 Series

Package – C75

(inches)

(mm)

Case

Pinout

Isolated Wide Input Range 15-Watt DC/DC Converters

PERFORMANCE SPECIFICATIONS AND ORDERING GUIDE

Output Input

R/N (mVp-p) ➁ Regulation (Max.)

Vo u t

Io u t

(A)

Power

(W)

Root Models ➀

UEI15-033-Q12P-C 3.3 4.5 14.85 60 90 ±0.05% ±0.1% 24 9-36 130 0.71 86.5% 89%

UEI15-033-Q48N-C 3.3 5 16.5 60 90 ±0.2% ±0.2% 48 18-75 130 0.4 86.5% 88.8%

UEI15-050-Q12P-C 5 3 15 70 125 ±0.05% ±0.075% 24 9-36 50 0.72 86.3% 87.3%

UEI15-050-Q48N-C 5 3 15 60 95 ±0.05% ±0.06% 48 18-75 130 0.36 84.3% 86.0%

UEI15-120-Q12P-C 12 1.3 15.6 110 150 ±0.05% ±0.05% 24 9-36 130 0.77 82.3% 84.5%

UEI15-120-Q48N-C 12 1.3 15.6 85 120 ±0.075% ±0.05% 48 18-75 15 0.76 83.3% 85%

UEI15-150-Q12P-C 15 1.1 16.5 130 175 ±0.05% ±0.05% 24 9-36 130 0.81 83.5% 85%

UEI15-150-Q48N-C 15 1.1 16.5 80 120 ±0.05% ±0.05% 48 18-75 20 0.4 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

(V)

UEI15 - Q12- -033

Unipolar Wide Input
15-Watt Series

Nominal Output Voltage
in Tenths of a Volt

➀

Vin

Nom.

Range

(V)

 Minimum output load for UEI15-033-Q12, UEI15-120-Q12 and UEI15-050-Q12 is 10% of

P C

On/Off Control Polarity:

P = Positive
N = Negative

Input Voltage Range

Q12 = 9-36V
Q48 = 18-75V

Iin =

no

load

(V)

(mA)

maximum current.

RoHS-6 Hazardous
Substance Compliance

Efficiency

Iin =

full

load

(A)Typ. Max. Line Load Min. Typ.

Note:

Some model number combinations
may not be available.
Contact Murata Power Solutions.

1.1×0.9×0.335 27.94×22.86×8.51 P22

Technical enquiries email: [e-mail], tel: [phone]www.murata-ps.com

MDC_UEI15W.B12 Page 2 of 12

MECHANICAL SPECIFICATIONS

Top View

1.10 (27.9)
Pin # 1

0.96

(24.4)

0.200
(5.08)

0.300
(7.62)

0.19
(4.8)

Side View

0.36
(9.1)

Ø 0.40±0.002
Ø 0.062±0.002
6x at pins 1-6

Pin with
shoulder

Bottom View End View

0.400 (10.16)

#6

#5

#4

#3

#2

#1

C

L

0.400

(10.16)

0.15
(3.8)

0.800

(20.32)

Pin

Function P22

Pin

Function P22

4

Positive Output

1

Positive Input

5

Trim

2

Negative Input

3

On/Off Control In

6

Negative Output

Third Angle Projection

Dimensions are in inches (mm shown for ref. only).

Components are shown for reference only.

Tolerances (unless otherwise specified):
.XX ± 0.02 (0.5)
.XXX ± 0.010 (0.25)
Angles ± 2˚

Case 75

UEI15 Series

Isolated Wide Input Range 15-Watt DC/DC Converters

INPUT/OUTPUT CONNECTIONS

PHYSICAL CHARACTERISTICS

Pin Material Copper alloy
Pin Diameter 0.04" (1.016mm)
Pin Finish Gold plate
Weight 0.352 oz./10 grams
Electromagnetic Interference FCC part 15, class B, EN55022
Flammability Rating UL 94V-0

Safety (designed to meet)

UL/cUL 60950-1, CAN/CSA­C22.2-60950-1, IEC/EN 60950-1

Technical enquiries email: [e-mail], tel: [phone]www.murata-ps.com

MDC_UEI15W.B12 Page 3 of 12

INPUT CHARACTERISTICS

Model Family

Vin

V

UEI15-033-Q12 24
UEI15-033-Q48 48
UEI15-050-Q12 24
UEI15-050-Q48 48
UEI15-120-Q12 24
UEI15-120-Q48 48
UEI15-150-Q12 24
UEI15-150-Q48 48

Isolated Wide Input Range 15-Watt DC/DC Converters

Start-up

threshold

Under­voltage

V

9.5 8.6

16.7 15.6 130 1.04 2

9.5 8.5 130 1.90 4

16.7 15.6 130 0.96 2

9.5 8.4 130 2.04 4

16.7 15.6 15 1.02 1.5

9.5 8.4 130 2.13 4

16.7 16.2 20 1.06 2

Shut­down

V

Reflected

(back)
Ripple

Current

mA pk-pk

30 0.05 50

Inrush

Transient

A2sec

Input Current

Output Short

Circuit

mA

No

Low

Load

Line

mA

130 1.86

A

Standby

Mode

mA

1

Recom­mended

Fuse

A

4

Inter-

nal
Input
Filter

Type

C

Reverse
Polarity

Protec-

tion

None

- see
notes

UEI15 Series

Remote On/Off Control

On/Off

Current

mA

1

Positive Logic

blank model

suffix

OFF=Gnd pin

or –0.7 to +1.2V

max. ON=open

pin or +5.8 to

+15V max.

Negative Logic

"N" model

OFF=open pin

or +5.8 to +

15V max.

ON=Gnd pin

or –0.7 to

+1.2V max.

suffix

OUTPUT CHARACTERISTICS

Io u t

Model Family

Max.

mA

UEI15-033-Q12
UEI15-033-Q48
UEI15-050-Q12
UEI15-050-Q48
UEI15-120-Q12
UEI15-120-Q48

See

Ordering

Guide

UEI15-150-Q12
UEI15-150-Q48

ISOLATION CHARACTERISTICS

Input to

Model Family

UEI15-033-Q12
UEI15-033-Q48
UEI15-050-Q12
UEI15-050-Q48
UEI15-120-Q12
UEI15-120-Q48
UEI15-150-Q12
UEI15-150-Q48

Output Min.

Vdc

2000 10 1000
2250 10 1500
2000 10 1500
2250 10 1000
2000 10 1000
2250 10 1000
2000 10 1500
2250 10 1000

Vo u t
Accuracy
50% Load
% of Vn o m

Isolation

Resistance

Adjustment

Range

% of Vn o m

±1 ±10 ±0.02

Min.

MΩ

Isolation

Capacitance

pF

Temperature

Coefficient

% of Vo u t /ºC

Isolation

Safety
Rating

Basic

insulation

Capacitive Loading Max.

Low ESR <0.02Ω Max,

resistive load

µF

1,000

470

DYNAMIC CHARACTERISTICS

Model Family

UEI15-033-Q12
UEI15-033-Q48
UEI15-050-Q12
UEI15-050-Q48
UEI15-120-Q12
UEI15-120-Q48
UEI15-150-Q12
UEI15-150-Q48

Overvoltage protection

Dynamic Load

(50-75-50% load

V

4.5

3.9

5.9

5.9

14.1
15
18
20

Response

step) µSec

o u t

to 1% V

100

150 340

100

OV

protection

Magnetic
feedback

Start-up Time

in to Vo u t regulated

V

(Max.) mSec

50 50

method

put Range

Voltage Out-

See ordering guide

Remote On/Off to

Vo u t regulated max.)

Ripple/Noise

(20 MHz

8

Line/Load

bandwidth)

Switching
Frequency

Efficiency

Regulation

KHz

350
350
350
375

350
340
380

MISCELLANEOUS CHARACTERISTICS

Operating Temperature Range

Derating

6

6

–40 to +85ºC

6

with derating

See

Curves

Model Family

UEI15-033-Q12

UEI15-033-Q48

UEI15-050-Q12

UEI15-050-Q48

UEI15-120-Q12

UEI15-120-Q48

UEI15-150-Q12

UEI15-150-Q48

Current Limit

Inception 98% of

Vout, after warmup

A

6.0

7.2 3.49 x 10

4.6

4.5

2.0

1.8 135

1.6

1.7

Short

Circuit

Protection

Method

Current

limiting,

hiccup

autorestart

Short

Circuit

Current

A

0.3 Continuous Monotonic

Short Circuit

Duration

(output shorted

to ground)➀

Pre-

biased

setup

Calculated

MTBF
Hours

2 x 10

2 x 10

Remove overload for recovery. Output may be shorted to ground with no damage.

Technical enquiries email: [e-mail], tel: [phone]www.murata-ps.com

Storage

Temperature

Range

ºC

–55 to +125 ºC

Thermal

protection/

shutdown

ºC

115

115

MDC_UEI15W.B12 Page 4 of 12