MURATA UEI30 Technical data
www.murata-ps.com
Typ
www.murata-ps.com
UEI30 Series
30W Isolated Wide-Range DC/DC Converters
Featuring a full 30 Watt output in 1.8 square inches of board area,
the UEI series isolated DC/DC converter family offers efficient
regulated DC power for printed circuit board mounting.
Typical unit
ical unit
FEATURES
Small footprint DC/DC converter, ideal for high
current applications
0.92" x 1.92" x 0.35" open frame package
Wide range input voltages 9-36 and 18-75Vdc
Double lead-free assembly and attachment
for RoHS standards
Isolation up to 2250 VDC (basic)
Up to 30W total output power with
overtemperature shutdown
High effi ciency synchronous rectifi er forward
topology
Stable no-load operation with no required
external components
–40 to +85°C temperature range with derating
Designed to meet UL60950-1, CSA-C22.2 No.
234, EN60950-1 safety approvals
Extensive self-protection shut down features
RoHS hazardous substance compliant
PRODUCT OVERVIEW
Wide range 4:1 inputs on the 0.92" x 1.92" x 0.35"
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.
Fixed output voltages from 3.3 VDC to 15 VDC
are tightly regulated and may be trimmed within
±10% of nominal output. Applications include
small instruments, computer-based systems,
data communications equipment, remote sensor
systems, vehicle and portable electronics.
The UEI 30W Series includes full magnetic and
optical isolation up to 2250 Volts DC (basic insulation). For connection to digital systems, the outputs offer fast settling to current step loads and
tolerance of higher capacitive loads. Excellent
ripple and noise specifi cations assure compatibility to circuits using CPU’s, ASIC’s, programmable
logic and FPGA’s. No minimum load is required.
For systems requiring controlled startup/shutdown, an external switch, transistor or digital
SIMPLIFIED SCHEMATIC
logic may be used to activate the remote On/Off
control. Remote Sense inputs compensate for
resistive line drops at high currents.
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 indefi nitely.
Additional features include output overvoltage
and reverse conduction elimination.
The synchronous rectifi er forward topology
offers high effi ciency for minimal heat buildup
and “no fan” operation. The open frame design
is also available under special quantity order
with an encapsulation shell and thermallyconductive potting compound. This option offers
additional cooling in low-airfl ow, high temperature applications.
For full details go to
www.murata-ps.com/rohs
+V
–V
TRIM
OUT
OUT
+V
IN
–V
IN
On/Off
Control
GATE
DRIVE
ISOLATION
BARRIER
Control
OPTO
ISOLATION
Reference, trim &
Error Amplifier
Typical topology is shown.
www.murata-ps.com Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000
MDC_UEI Series 30W.A01 Page 1 of 11
UEI30 Series
30W Isolated Wide-Range DC/DC Converters
PERFORMANCE SPECIFICATIONS AND ORDERING GUIDE
Output Input
V
OUT
(V)
Root Model
UEI30-033-Q12P-C 3.3 9 29.7
UEI30-033-Q48N-C 3.3 9 29.7 48 18-75 0.92x1.92x0.35 P21
UEI30-050-Q12P-C 5 6 30 24 9-36 0.92x1.92x0.35 P21
UEI30-050-Q48N-C 5 6 30 25 50 ±0.1% ±0.1% 48 18-75 130 0.70 87.9% 89% 0.92x1.92x0.35 P21
UEI30-120-Q12P-C 12 2.5 30
UEI30-120-Q48N-C 12 2.5 30 48 18-75 0.92x1.92x0.35 P21
UEI30-150-Q12P-C 15 2 30 24 9-36 0.92x1.92x0.35 P21
UEI30-150-Q48N-C 15 2 30 48 18-75
c Please refer to the part number structure for additional options and complete ordering part numbers.
d All specifi cations are at nominal line voltage and full load, +25 deg.C. unless otherwise noted. See
detailed specifi cations.
c
Power R/N (mVp-p) Regulation (Max.)
IOUT
(A)
(W) Typ. Max. Line Load
Please contact Murata Power
Solutions for further information.
Please contact Murata Power
Solutions for further information.
VIN
Range
Nom.
(V)
e Sense input is not included for 12 Vout and higher models. Sense is optional for 5 Vout and lower.
(V)
24 9-36
24 9-36
Output capacitors are 1 μF ceramic in parallel with 10 μF electrolytic. Input cap is 22 μF, low ESR.
These I/O caps are necessary for our test equipment and may not be needed for your application.
IIN,
no load
IIN, full
load (A)
(mA)
Please contact Murata Power
Solutions for further information.
Please contact Murata Power
Solutions for further information.
Effi ciency
Min. Typ.
Open Frame
Package, C80
Case (inches) Pinout
0.92x1.92x0.35 P21
0.92x1.92x0.35 P21
0.92x1.92x0.35
P21
PART NUMBER STRUCTURE
UEI30 - Q48-050
Nominal Output Voltage
In tenths of a volt
Input Voltage Range:
Q12 = 9-36V
Q48 = 18-75V
C
-N
RoHS-6 hazardous substancecompliance
Note:
Not all model number combinations are
available. Contact Murata Power Solutions.
On/Off Control Polarity:
P = Positive
N = Negative
Positive “P” polarity is standard for Q12 models and optional special
order for Q48 models. Negative “N” polarity is standard for Q48
models and optional special order for Q12 models.
Soldering Guidelines
Murata Power Solutions recommends the specifi cations below when installing these converters. These specifi cations vary depending on the solder type. Exceeding these specifi cations may cause damage to the product. Be cautious when there is high atmospheric humidity. We strongly recommend a mild pre-bake (100° C. for 30 minutes). Your production
environment may differ; therefore please thoroughly review these guidelines with your process engineers.
Wave Solder Operations for through-hole mounted products (THMT)
For Sn/Ag/Cu based solders: For Sn/Pb based solders:
Maximum Preheat Temperature 115° C. Maximum Preheat Temperature 105° C.
Maximum Pot Temperature 270° C. Maximum Pot Temperature 250° C.
Maximum Solder Dwell Time 7 seconds Maximum Solder Dwell Time 6 seconds
Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000www.murata-ps.com
MDC_UEI Series 30W.A01 Page 2 of 11
MECHANICAL SPECIFICATIONS
INPUT/OUTPUT CONNECTIONS
Pin Function P21 Pin Function P21
1 + Vin 4 + Vout
2 - Vin 5 - Vout
3 Remote On/Off* 6 Trim
* The Remote On/Off can be provided with either positive (P suffi x) or negative
(N suffi x) polarity.
UEI30 Series
30W Isolated Wide-Range DC/DC Converters
PHYSICAL CHARACTERISTICS
Outline dimensions See mechanical specs
Pin material
Copper alloy with gold plate over nickel
underplate
Pin diameter 0.04" (1.016mm)
Pin Finish Gold plate
Weight 0.53 oz (15g)
Electromagnetic interference
Designed to meet FCC part 15, class B,
EN55022 (may need fi lter)
Flammability Rating UL 94V-0
Safety
Designed to meet IEC/EN/UL/cUL 60950-1,
CSA-C22.2 No. 60950-1
(23.4)
(6.4)
#6
#5
.400
(10.16)
C
L
.400
(10.16)
Dimensions are in inches (mm shown for ref. only).
Third Angle Projection
Tolerances (unless otherwise specified):
.XX ± 0.02 (0.5)
.XXX ± 0.010 (0.25)
Angles ± 2˚
Components are shown for reference only.
TOP VIEW
1.92
(48.8)
.92
SIDE VIEW
.25
MOUNTING PLANE
BOTTOM VIEW
1.800
(45.72)
C
L
.900
(22.86)
REF
PIN #1
.35
(8.9)
.040 .002 PIN WITH
.071 .002 SHOULDER
6X AT PINS 1-6
#3
#2
.300 (7.62)
.100 (2.54)
.300 (7.62)
C
#4
L
END VIEW
#1
UEI30 Open Frame
30W
Package C80
Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000www.murata-ps.com
MDC_UEI Series 30W.A01 Page 3 of 11
INPUT CHARACTERISTICS
Under-
Model Family
UEI30-033-Q12P-C
UEI30-033-Q48N-C 17.3 16.0 1.99 6
UEI30-050-Q12P-C
UEI30-050-Q48N-C 17.0 16.2 1.89 6
UEI30-120-Q12P-C
UEI30-120-Q48N-C
UEI30-150-Q12P-C
UEI30-150-Q48N-C
Start-up
threshold
V V mA pk-pk A
voltage
Shutdown
Refl ected
(back)
Ripple
Current
30
2
Input Current
Inrush
Output
Short
Circuit
Low
Line
Tran-
sient
2
sec mA A mA A mA “P” model suffi x “N” model suffi x
0.05 50 1 L-C N/A 1
Standby
Mode
Recommended
Fuse
UEI30 Series
30W Isolated Wide-Range DC/DC Converters
Internal
Input
Filter
Type
Reverse
Polarity
Protection
On/Off
Current
Remote On/Off Control
Positive Logic Negative Logic
OFF=Gnd pin or
–0.7 to +1.2V
max. ON=open
pin or +10 to
+15V max.
OFF=open pin
or +10 to +15V
max. ON=Gnd
pin or –0.7 to
+1.2V max.
OUTPUT CHARACTERISTICS
IOUT
Model Family
UEI30-033-Q12P-C
UEI30-033-Q48N-C 9
UEI30-050-Q12P-C
UEI30-050-Q48N-C 6 7.3
UEI30-120-Q12P-C
UEI30-120-Q48N-C
UEI30-150-Q12P-C
UEI30-150-Q48N-C
ABSOLUTE MAXIMUM RATINGS
Input Voltage
On/Off control, referred to –Vin -0.7 V. min to +15V max.
Input Reverse Polarity Protection See fuse section
Output Overvoltage V
Output Current
Overtemperature Protection
Storage Temperature
Lead Temperature See soldering specifi cations
Max.
A % of V
Q12 models
Q48 models
OUT
V
Accuracy
50% Load
Volts, max. continuous 0-36 VDC to rated specifi cations
Volts, transient, 100 mSec
Volts, max. continuous
Volts, transient, 100 mSec 100 VDC, no damage
Adjustment
Range
NOM % of VNOM % of VOUT /ºC µF V
1
±10 ±0.02 2,000 No
Temperature
Coeffi cient
50 VDC, no damage
0-75 VDC to rated specifi cations
Current-limited. Devices can
withstand sustained short circuit
without damage. The outputs are
not intended to accept appreciable reverse current.
Device includes electronic overtemperature shutdown protection
under normal operation.
-55 to +125° C.
Capacitive Loading Max.
Low ESR <0.02Ω Max,
resistive load
OUT nom. +20% max.
Overvoltage
protection
Hiccup auto-start
after fault removal
5.0
Absolute Maximum Ratings
Absolute maximums are stress ratings. Exposure of devices to
greater than any of these conditions may adversely affect long-term
reliability. Proper operation under conditions other than those listed
in the Performance/Functional Specifi cations Table is not implied nor
recommended.
Maximum Ratings Notes
The UEI-30W series does not include electronic Input Overvoltage
Protection. Therefore it is possible for the input to exceed the continuous ratings listed above and still operate. However, units are not
routinely Production-tested above the continuous ratings. Therefore,
the rated specifi cations do not apply at excessive input voltage and
performance is undetermined.
At some combinations of high ambient temperature, low airfl ow
or high output current, the controller may shut down from overtemperature if the maximum rated input voltage is exceeded.
The transient specifi cations indicate that sample lots were successfully tested for 100 mS at the transient stress voltage and were
not damaged. As a practical matter in your application, it is often
diffi cult to determine how long an input overvoltage was applied.
Therefore, do not exceed the continuous voltage rating.
OV
loading
Minimum
Magnetic
feedback
method
protection
Ripple/Noise
See ordering guide
8
(20 MHz
bandwidth)
Effi ciency
Line/Load
Regulation
Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000www.murata-ps.com
MDC_UEI Series 30W.A01 Page 4 of 11
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