www.murata-ps.com
UWR Series
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
Cost!
Low
automated, 100% SMT assembly
Fully
Industry-standard package and pinout
1.25" x 0.8", 24-pin DIP form factor
external components required
No
12 or 15 Volt outputs
5,
Choice of 3 input voltage ranges:
4.5-9 Volts
9-18 Volts
18-72 Volts
Guaranteed efficiencies to 76%
isolated, 1000Vdc guaranteed
Fully
to +75°C operation with no derating
–25
Designed to meet UL/CSA/EN 60950-1 safety
approvals
EMI/EMC characterized
cations and customs for OEM’s
Modifi
SIMPLIFIED SCHEMATIC
PRODUCT OVERVIEW
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.
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-and-
play" convenience. They operate over the full –25
to +75°C temperature range with no output power
derating.
Output voltages are either 5, 12 or 15 Volts. Input
voltage ranges are either 4.5-9V ("D5" models),
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 encap-
sulated with a thermally conductive potting com-
pound. 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 character-
ization data.
DATEL’s UWR Model 3W DC/DC’s are ideal replace-
ments 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.
+V
IN
+V
OUT
COMMON
–V
IN
PWM
CONTROLLER
OPTO
ISOLATION
REFERENCE &
ERROR AMP
Typical topology is shown
For full details go to
www.murata-ps.com/rohs
www.murata-ps.com/support
MDC_UWR3W Series.C02
Page 1 of 4
UWR Series
3 Watt, Single Output DC/DC Converters
PERFORMANCE SPECIFICATIONS AND ORDERING GUIDE
Output
Model
OBSOLETE
TARGETED FOR OBSOLESCENCE
TARGETED FOR OBSOLESCENCE
Input
V
IN
Nom.
(Volts)
5
12
48
5
12
48
5
12
48
Efficiency
I
IN
(mA)
18/694
25/282
6/65
30/800
25/340
11/78
30/811
25/340
11/78
R/N (mVp-p)
Regulation (Max.)
I
OUT
V
OUT
(Volts) (mA, Max.) Typ. Max.
Line
Load
5
5
5
12
12
12
15
15
15
500
500
500
250
250
250
200
200
200
75
75
75
75
75
75
75
75
75
120
120
150
150
150
150
150
150
150
±0.2%
±0.2%
±0.2%
±0.5%
±0.5%
±0.5%
±0.5%
±0.5%
±0.5%
±0.5%
±0.5%
±0.5%
±0.5%
±0.5%
±0.5%
±0.5%
±0.5%
±0.5%
Range
(Volts)
4.5-9
9-18
18-72
4.5-9
9-18
18-72
4.5-9
9-18
18-72
Full Load
Min.
70%
70%
75%
72%
72%
76%
72%
72%
76%
Typ.
72%
72%
77%
75%
74%
80%
74%
76%
78%
Pack-
age
(Case/
Pinout)
C1, P1
C1, P1
C1, P1
C1, P1
C1, P1
C1, P1
C1, P1
C1, P1
C1, P1
UWR-5/500-D5-C
UWR-5/500-D12-C
UWR-5/500-D48-C
UWR-12/250-D5-C
UWR-12/250-D12-C
UWR-12/250-D48-C
UWR-15/200-D5-C
UWR-15/200-D12-C
UWR-15/200-D48-C
OBSOLETE
OBSOLETE
TARGETED FOR OBSOLESCENCE
TARGETED FOR OBSOLESCENCE
TARGETED FOR OBSOLESCENCE
OBSOLETE
➀
➁
➂
➃
Typical at T
A
= +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
1.25
(31.75)
STANDOFFS
0.025
(0.64)
U WR
-
5
/
500
-
D48
-
C
Output Configuration:
U
= Unipolar
Wide Range Input
Nominal Output Voltage:
5, 12 or 15 Volts
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)
Maximum Output Current
in mA
*Contact Murata Power Solutions for availability
0.100
(2.54)
0.45
(11.43)
0.020 ±0.002 DIA.
(0.508 ±0.051)
0.600
(15.24)
0.200
(5.08)
0.18
(4.57)
0.15 MIN
(3.81)
Soldering Guidelines
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 atmo-
spheric 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:
Maximum Preheat Temperature
Maximum Pot Temperature
Maximum Solder Dwell Time
For Sn/Pb based solders:
Maximum Preheat Temperature
Maximum Pot Temperature
Maximum Solder Dwell Time
105° C.
250° C.
6 seconds
115° C.
270° C.
7 seconds
3 4
7
8
0.600
(15.24)
0.80
(20.32)
1 2
5
6
BOTTOM VIEW
PLASTIC CASE WITH AN INSULATED BASE
0.10
(2.54)
I/O Connectiions
Pin
1
2
3
4
5
6
7
8
Function P1
+Vin
+Vin
–Vin
–Vin
Common
+Vout
Common
+Vout
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.
www.murata-ps.com/support
MDC_UWR3W Series.C02
Page 2 of 4
UWR Series
3 Watt, Single Output DC/DC Converters
Performance/Functional Specifications
Input
Input Voltage Range:
"D5" Models
"D12" Models
"D48" Models
Input Current
Input Filter Type
➁
Reverse-Polarity Protection
V
OUT
Accuracy
(50% load)
Temperature Coefficient
Ripple/Noise
(20MHz BW)
➁
Line/Load Regulation
Efficiency
Isolation Voltage
➂
Current Limiting:
"D5" Models
"D12" and "D48" Models
Transient Response
(50% load step)
Switching Frequency:
"D5" Models
"D12" and "D48" Models
Operating Temperature
➃
(Ambient, no derating)
Storage Temperature
Dimensions
Case Material
Pin Material
Weight
4.5-9 Volts (5V nominal)
9-18 Volts (12V nominal)
18-72 Volts (48V nominal)
See Ordering Guide
Pi
Yes (Instantaneous, 2A maximum)
Input Voltage:
"D5" Models
"D12" Models
"D48" Models
Input Reverse-Polarity Protection
Output Overvoltage Protection
Output Current
Typical @ T
A
= +25°C under nominal line voltage and full-load conditions, unless noted.
➀
Absolute Maximum Ratings
12 Volts
20 Volts
80 Volts
Current must be <2A. Brief duration
only. Fusing recommended.
None
Current limited. Max. current and
short-circuit duration are model
dependent. "D12" and "D48"
can withstand
circuits.
–40 to +100°C
Output
±1%, maximum
±0.02% per °C
See Ordering Guide
See Ordering Guide
See Ordering Guide
1000Vdc, minimum
Power-limiting technique, auto-recovery
Hiccup technique, auto-recovery
models
sustained output short
Storage Temperature
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
200µsec to ±1% of final value
200kHz
170kHz
TECHNICAL NOTES
Floating Outputs
Since these are isolated DC/DC converters, their outputs are "floating." Us-
ers 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 install-
ing electrolytic capacitors across the input terminals and/or low-ESR tanta-
lum 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
To Reduce Output Ripple
5V OutputS
12/15V Outputs
47µF, 15V
10µF, 35V
4.7µF, 100V
47µF, 10V, Low ESR
22µF, 20V, Low ESR
Environmental
–25 to +75°C
–40 to +100°C
Physical
1.25" x 0.8" x 0.45" (31.8 x 20.3 x 11.4mm)
Diallyl phthalate, UL94V-0-rated
Gold-plated copper alloy
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.
In critical, space-sensitive applications, DATEL may be able to tailor the inter-
nal input/output filtering of these units to meet your specific requirements.
Contact our Applications Engineering Group for additional details.
www.murata-ps.com/support
MDC_UWR3W Series.C02
Page 3 of 4
UWR Series
3 Watt, Single Output DC/DC Converters
Input Fusing
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:
V
IN
Range
"D5"
"D12"
"D48"
Fuse Value
1.5A
1A
0.5A
EMI RADIATED EMISSIONS
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 con-
ducted 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
80
70
60
CUSTOM CAPABILITIES
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!
Our experienced applications and design staffs; quick-turn prototype
capability; highly automated, SMT assembly facilities; and in-line SPC qual-
ity-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.
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.
Contact us. Our goal is to provide you the highest-quality, most cost-effec-
tive power converters available.
FCC Class B Limit
50
40
30
20
10
Radiated Emissions
0
–10
–20
100
1000
Frequency (MHz)
UWR-12/250-D5 Radiated Emissions
EN 55022 Class B, 10 Meters
Converter Output = 12Vdc @ 201mA
80
70
60
Radiated Emissions (dBµV/M)
EN 55022 Class B Limit
50
40
30
20
10
0
–10
Radiated Emissions
–20
100
1000
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
淘e淘
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
