UWR Series
www.murata-ps.com
3 Watt, Single Output DC/DC Converters
OBSOLETE PRODUCT
Last time buy on targeted parts only:
3 March 2014. Click here for more information.
FEATURES
PRODUCT OVERVIEW
Low Cost!
The 3 Watt, single-output, UWR Models of DATEL's
XWR Series DC/DC converters deliver impressive
levels of cost-effectiveness in an industry-standard
package and pinout. These highly-efficient (as
high as 76% guaranteed), fully isolated (1000Vdc
minimum), DIP-packaged power converters provide
true component-like convenience and flexibility to
designers of modern distributed power systems.
Fully automated, 100% SMT assembly
Industry-standard package and pinout
1.25" x 0.8", 24-pin DIP form factor
No external components required
5, 12 or 15 Volt outputs
Choice of 3 input voltage ranges:
4.5-9 Volts
9-18 Volts
18-72 Volts
Guaranteed efficiencies to 76%
Fully isolated, 1000Vdc guaranteed
–25 to +75°C operation with no derating
Designed to meet UL/CSA/EN 60950-1 safety
approvals
EMI/EMC characterized
Modifications and customs for OEM’s
Exploiting high-frequency (170-200kHz), flyback
topologies and contemporary, fully automated, SMT
assembly techniques, UWR Model DC/DC’s have
enough space to include input (pi type) and output
filters within their package. Requiring no external
components, these converters offer true "plug-andplay" convenience. They operate over the full –25
to +75°C temperature range with no output power
derating.
9-18V ("D12" models) or an ultra-wide 18-72V
("D48" models). Transient response time is a quick
200μsec.
These extremely rugged modules are fully encapsulated with a thermally conductive potting compound. They are moisture and vibration resistant
and have established a reputation for outstanding
MTBF. For telecommunication, computer and other
EMI-sensitive applications, these are the only DIP
packaged DC/DC’s offering full EMI/EMC characterization data.
DATEL’s UWR Model 3W DC/DC’s are ideal replacements for other more costly, less reliable power
converters as well as excellent choices for new
design-ins in systems demanding small size, low
cost and high reliability.
Output voltages are either 5, 12 or 15 Volts. Input
voltage ranges are either 4.5-9V ("D5" models),
SIMPLIFIED SCHEMATIC
+VOUT
+VIN
COMMON
–VIN
PWM
CONTROLLER
OPTO
ISOLATION
REFERENCE &
ERROR AMP
Typical topology is shown
For full details go to
www.murata-ps.com/rohs
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MDC_UWR3W Series.C02 Page 1 of 4
UWR Series
3 Watt, Single Output DC/DC Converters
PERFORMANCE SPECIFICATIONS AND ORDERING GUIDE
Typ.
Max.
Line
Load
VIN Nom.
(Volts)
Range
(Volts)
IIN
(mA)
Min.
Typ.
Package
(Case/
Pinout)
4.5-9
18/694
70%
72%
C1, P1
C1, P1
Output
Model
IOUT
VOUT
(Volts) (mA, Max.)
Input
R/N (mVp-p) Regulation (Max.)
Efficiency
Full Load
UWR-5/500-D5-C
5
500
75
120
±0.2%
±0.5%
5
TARGETED FOR OBSOLESCENCE
UWR-5/500-D12-C
5
500
75
120
±0.2%
±0.5%
12
9-18
25/282
70%
72%
TARGETED FOR OBSOLESCENCE
UWR-5/500-D48-C
5
500
75
150
±0.2%
±0.5%
48
18-72
6/65
75%
77%
C1, P1
OBSOLETE
UWR-12/250-D5-C
12
250
75
150
±0.5%
±0.5%
5
4.5-9
30/800
72%
75%
C1, P1
OBSOLETE
UWR-12/250-D12-C
12
250
75
150
±0.5%
±0.5%
12
9-18
25/340
72%
74%
C1, P1
TARGETED FOR OBSOLESCENCE
UWR-12/250-D48-C
12
250
75
150
±0.5%
±0.5%
48
18-72
11/78
76%
80%
C1, P1
TARGETED FOR OBSOLESCENCE
UWR-15/200-D5-C
15
200
75
150
±0.5%
±0.5%
5
4.5-9
30/811
72%
74%
C1, P1
TARGETED FOR OBSOLESCENCE
UWR-15/200-D12-C
15
200
75
150
±0.5%
±0.5%
12
9-18
25/340
72%
76%
C1, P1
UWR-15/200-D48-C
15
200
75
150
±0.5%
±0.5%
48
18-72
11/78
76%
78%
C1, P1
OBSOLETE
OBSOLETE
➀
➁
➂
➃
Typical at TA = +25°C under nominal line voltage and full-load conditions unless otherwise noted.
Ripple/Noise (R/N) measured over a 20MHz bandwidth.
10% to 100% load.
Nominal line voltage, no-load/full-load conditions.
PART NUMBER STRUCTURE
MECHANICAL SPECIFICATIONS
All dimension in Inches (mm)
Case C1
U WR - 5 / 500 - D48 - C
Output Configuration:
U = Unipolar
1.25
(31.75)
RoHS-6 hazardous
substance compliant*
Input Voltage Range:
D5 = 4.5-9 Volts (5V nominal)
D12 = 9-18 Volts (12V nominal)
D48 = 18-72 Volts (48V nominal)
Wide Range Input
Nominal Output Voltage:
5, 12 or 15 Volts
STANDOFFS
0.025
(0.64)
0.45
(11.43)
0.020 ±0.002 DIA.
(0.508 ±0.051)
0.600
(15.24)
0.15 MIN
(3.81)
Maximum Output Current
in mA
0.200
(5.08)
3 4
Soldering Guidelines
Wave Solder Operations for through-hole mounted products (THMT)
For Sn/Ag/Cu based solders:
Maximum Preheat Temperature
115° C.
Maximum Pot Temperature
270° C.
Maximum Solder Dwell Time
7 seconds
For Sn/Pb based solders:
105° C.
Maximum Pot Temperature
250° C.
Maximum Solder Dwell Time
6 seconds
7
8
0.600
(15.24)
Murata Power Solutions recommends the specifications below when installing these
converters. These specifications vary depending on the solder type. Exceeding these
specifications 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.
Maximum Preheat Temperature
0.18
(4.57)
0.100
(2.54)
*Contact Murata Power Solutions for availability
1 2
5
0.80
(20.32)
6
BOTTOM VIEW
PLASTIC CASE WITH AN INSULATED BASE
I/O Connectiions
Pin
1
2
3
4
5
6
7
8
Function P1
+Vin
+Vin
–Vin
–Vin
Common
+Vout
Common
+Vout
0.10
(2.54)
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.
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MDC_UWR3W Series.C02 Page 2 of 4
UWR Series
3 Watt, Single Output DC/DC Converters
Performance/Functional Specifications
Typical @ TA = +25°C under nominal line voltage and full-load conditions, unless noted. ➀
Input
Input Voltage Range:
"D5" Models
"D12" Models
"D48" Models
4.5-9 Volts (5V nominal)
9-18 Volts (12V nominal)
18-72 Volts (48V nominal)
Input Current
See Ordering Guide
Input Filter Type ➁
Pi
Reverse-Polarity Protection
Yes (Instantaneous, 2A maximum)
Output
Absolute Maximum Ratings
Input Voltage:
"D5" Models
"D12" Models
"D48" Models
12 Volts
20 Volts
80 Volts
Input Reverse-Polarity Protection
Current must be <2A. Brief duration
only. Fusing recommended.
Output Overvoltage Protection
None
Output Current
Temperature Coefficient
±0.02% per °C
Ripple/Noise (20MHz BW) ➁
See Ordering Guide
models
sustained output short
Current limited. Max. current and
short-circuit duration are model
dependent. "D12" and "D48"
can withstand
circuits.
Line/Load Regulation
See Ordering Guide
Storage Temperature
–40 to +100°C
Efficiency
See Ordering Guide
Isolation Voltage ➂
1000Vdc, minimum
Current Limiting:
"D5" Models
"D12" and "D48" Models
Power-limiting technique, auto-recovery
Hiccup technique, auto-recovery
VOUT Accuracy (50% load)
±1%, maximum
These are stress ratings. Exposure of devices to any of these conditions may adversely
affect long-term reliability. Proper operation under conditions other than those listed in the
Performance/Functional Specifications Table is not implied.
Dynamic Characteristics
Transient Response (50% load step)
200µsec to ±1% of final value
Switching Frequency:
"D5" Models
"D12" and "D48" Models
200kHz
170kHz
Environmental
Operating Temperature ➃
(Ambient, no derating)
–25 to +75°C
Storage Temperature
–40 to +100°C
Physical
Dimensions
1.25" x 0.8" x 0.45" (31.8 x 20.3 x 11.4mm)
Case Material
Diallyl phthalate, UL94V-0-rated
Pin Material
Gold-plated copper alloy
Weight
0.5 ounces (14.2 grams)
➀ These power converters require a minimum 10% loading to maintain specified regulation.
Operation under no-load conditions will not damage these devices; however they may not
meet all listed specifications.
➁ Application-specific internal input/output filtering can be recommended and perhaps
added internally upon request. Contact DATEL Applications Engineering for details.
➂ Devices can be screened or modified for higher guaranteed isolation voltages.
Contact DATEL Applications Engineering for details.
➃ Devices can be warranted or screened for lower-temperature operation.
Contact DATEL Applications Engineering for details.
TECHNICAL NOTES
Floating Outputs
Since these are isolated DC/DC converters, their outputs are "floating." Users may ground either the Common (pins 5 and 7) for normal usage or the
positive side (+Output, pins 6 and 8) to effectively reverse the output polarity.
Filtering and Noise Reduction
All UWR 3 Watt DC/DC Converters achieve their rated ripple and noise
specifications without the use of external input/output capacitors. In critical
applications, input/output ripple and noise may be further reduced by installing electrolytic capacitors across the input terminals and/or low-ESR tantalum or electrolytic capacitors across the output terminals. The caps should
be located as close to the power converters as possible. Typical values are
listed in the tables below. In many applications, using values greater than
those listed will yield better results.
To Reduce Input Ripple
"D5" Models
"D12" Models
"D48" Models
47µF, 15V
10µF, 35V
4.7µF, 100V
To Reduce Output Ripple
5V OutputS
12/15V Outputs
47µF, 10V, Low ESR
22µF, 20V, Low ESR
In critical, space-sensitive applications, DATEL may be able to tailor the internal input/output filtering of these units to meet your specific requirements.
Contact our Applications Engineering Group for additional details.
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MDC_UWR3W Series.C02 Page 3 of 4
UWR Series
3 Watt, Single Output DC/DC Converters
Input Fusing
EMI RADIATED EMISSIONS
Certain applications and/or safety agencies may require the installation of
fuses at the inputs of power conversion components. For DATEL UWR 3
Watt DC/DC Converters, you should use slow-blow type fuses with values
no greater than the following:
VIN Range
"D5"
"D12"
"D48"
Fuse Value
1.5A
1A
0.5A
If you’re designing with EMC in mind, please note that all of DATEL’s UWR
3 Watt DC/DC Converters have been characterized for radiated and conducted emissions in our new EMI/EMC laboratory. Testing is conducted in an
EMCO 5305 GTEM test cell utilizing EMCO automated EMC test software.
Radiated emissions are tested to the limits of FCC Part 15, Class B and
CISPR 22 (EN 55022), Class B. Correlation to other specifications can be
supplied upon request. Radiated emissions plots to FCC and
CISPR 22 for model UWR-12/250-D5 appear below. Published EMC test
reports are available for each model number. Contact DATEL’s Applications
Engineering Department for more details.
UWR-12/250-D5 Radiated Emissions
FCC Part 15 Class B, 3 Meters
Converter Output = 12Vdc @ 201mA
CUSTOM CAPABILITIES
Our experienced applications and design staffs; quick-turn prototype
capability; highly automated, SMT assembly facilities; and in-line SPC quality-control techniques combine to give us the unique ability to design and
deliver any quantity of power converters to the highest standards of quality
and reliability.
80
70
60
Radiated Emissions (dBµV/M)
DATEL’s world-class design, development and manufacturing team stands
ready to work with you to deliver the exact power converter you need for
your demanding, large volume, OEM applications. And ... we’ll do it on time
and within budget!
FCC Class B Limit
50
40
30
20
10
Radiated Emissions
0
–10
We have compiled a large library of DC/DC designs that are currently used
in a variety of telecom, medical, computer, railway, aerospace and industrial
applications. We may already have the converter you need.
–20
1000
100
Frequency (MHz)
Contact us. Our goal is to provide you the highest-quality, most cost-effective power converters available.
UWR-12/250-D5 Radiated Emissions
EN 55022 Class B, 10 Meters
Converter Output = 12Vdc @ 201mA
80
70
Radiated Emissions (dBµV/M)
60
EN 55022 Class B Limit
50
40
30
20
10
0
–10
Radiated Emissions
–20
1000
100
Frequency (MHz)
Murata Power Solutions, Inc.
11 Cabot Boulevard, Mansfield, MA 02048-1151 U.S.A.
ISO 9001 and 14001 REGISTERED
This product is subject to the following operating requirements
and the Life and Safety Critical Application Sales Policy:
Refer to: http://www.murata-ps.com/requirements/
Murata Power Solutions, Inc. makes no representation that the use of its products in the circuits described herein, or the use of other
technical information contained herein, will not infringe upon existing or future patent rights. The descriptions contained herein do not imply
the granting of licenses to make, use, or sell equipment constructed in accordance therewith. Specifications are subject to change without
notice.
© 2013 Murata Power Solutions, Inc.
www.murata-ps.com/support
MDC_UWR3W Series.C02 Page 4 of 4