www.murata-ps.com
Dual Output BWP Models
DIP Packaged, Standard-Pinout
3 Watt, DC/DC Converters
OBSOLETE PRODUCT
Contact Factory for Replacement Model
FEATURES
■
■
PRODUCT OVERVIEW
The proven cost-effectiveness, quality and
long-term reliability that has come to define
Murata Power Solutions' standard, 3W, dual-
output, DIP-packaged DC/DC converters (see
BST 3W Models) is now available in the "other
standard pinout" (see next page) made popular
by off-shore suppliers. These newly designed
BWP Models exploit totally automated SMT
assembly techniques and do not contain any
trimpots, "wet" aluminum electrolytic capaci-
tors, or manually soldered "flying" leads. Their
made-in-the-USA quality and affordable pricing
are rapidly making them the converters of choice
in many existing applications.
BWP DC/DC converters bring true component-
like convenience to designers of modern dis-
tributed power systems. Exploiting an efficient,
high-frequency (170-200kHz), flyback topology
and high-density SMT assembly techniques,
BWP DC/DC’s have enough space to include
input (pi type) and output filters within their
package. They are fully isolated (500Vdc guaran-
teed) and do not require any external components
to meet published specifications. They operate,
without derating, over the full –40 to +75°C
temperature range.
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). Output
transient response time is a quick 200μsec, and
output ripple and noise are typically 75mVp-p.
All models are certified to UL1950, CSA 22.2 No.
950 and IEC950. Full EMI/EMC characterizations
are currently in progress.
MPS’s BWP 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.
Low cost! High quality!
Highly reliable, 100% SMT
construction
Standard DIP package and pinout
No external components required
±5, ±12 or ±15 Volt outputs
Choice of 3 wide input ranges:
■
4.5-9 Volts
■
9-18 Volts
■
18-72 Volts
Guaranteed efficiencies to 75%
Fully isolated, 500Vdc guaranteed
Internal input/output filtering
Output current limiting
–40 to +75°C operation with no derating
UL1950/C22.2 No. 950/IEC950-1 certified
■
■
■
■
■
■
■
■
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■
Typical topology is shown.
For full details go to
www.murata-ps.com/rohs
Figure 1. Simplified Schematic
www.murata-ps.com
23 Oct 2009
email: sales@murata-ps.com
MDC_BWP Models.B04
Page 1 of 4
Dual Output BWP Models
Performance Specifications and Ordering Guide
➀
ORDERING GUIDE
Output
V
OUT
(Volts)
±5
±5
±12
±12
±12
±15
±15
±15
I
OUT
(mA, max.)
±250
±250
±105
±125
±125
±85
±100
±100
R/N (mVp-p)
➁
Typ.
75
75
75
75
75
75
75
75
Max.
120
120
150
150
150
150
150
150
Regulation (Max.)
Line
±0.5%
±0.5%
±0.5%
±0.5%
±0.5%
±0.5%
±0.5%
±0.5%
Load
➂
±0.5%
±0.5%
±0.5%
±0.5%
±0.5%
±0.5%
±0.5%
±0.5%
V
IN
Nom.
(Volts)
12
48
5
12
48
5
12
48
Input
Range
(Volts)
9-18
18-72
4.5-9
9-18
18-72
4.5-9
9-18
18-72
I
IN
➃
(mA)
25/267
7/69
60/690
25/329
8/81
68/689
25/329
8/81
Efficiency
Min.
75%
72%
71%
74%
73%
72%
74%
73%
Typ.
78%
76%
73%
76%
77%
74%
76%
77%
Package
(Case, Pinout)
C1A, P20
C1A, P20
C1A, P20
C1A, P20
C1A, P20
C1A, P20
C1A, P20
C1A, P20
DIP Packaged, Standard-Pinout
3 Watt, DC/DC Converters
Models
BWP-5/250-D12
BWP-5/250-D48
BWP-12/105-D5
BWP-12/125-D12
BWP-12/125-D48
BWP-15/85-D5
BWP-15/100-D12
BWP-15/100-D48
➀
Typical at T
A
= +25°C under nominal line voltage and full-load conditions unless otherwise noted.
➁
Ripple/Noise (R/N) measured over a 20MHz bandwidth.
➂
Balanced loads, 10% to 100% load.
➃
Nominal line voltage, no-load/full-load conditions.
TEMPERATURE DERATING
MECHANICAL SPECIFICATIONS
PIN 1
INDICATOR
1.25
(31.8)
STANDOFFS
0.025
(0.6)
Output Power vs. Ambient Temperature
V
IN
Nominal, Natural Convection
3.5
3
0.45
(11.4)
Case C1A
Output Power (Watts)
2.5
2
1.5
0.020 ±0.002 DIA.
(0.51 ±0.051)
1.100
(27.9)
1.000
(25.4)
0.900
(22.9)
0.200
(5.1)
0.15 MIN
(3.8)
1
0.5
0
–40
0
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95 100
Ambient Temperature (
˚
C)
0.100
(2.5)
1 2 3
10 11 12
0.600
(15.2)
0.80
(20.3)
24 23 22
I/O CONNECTIONS
Function P20
Pin
Function P20
+Input
–Output
Common
Common
+Output
–Input
13
14
15
22
23
24
–Input
+Output
Common
Common
–Output
+Input
15 14 13
Pin
1
2
3
10
11
12
BOTTOM VIEW
0.08
(2.0)
PLASTIC CASE WITH AN INSULATED BASE
0.10
(2.5)
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
23 Oct 2009
email: sales@murata-ps.com
MDC_BWP Models.B04
Page 2 of 4
Dual Output BWP Models
DIP Packaged, Standard-Pinout
3 Watt, DC/DC Converters
PART NUMBER STRUCTURE
Input Voltage:
"D5" Models
"D12" Models
"D48" Models
Input Reverse-Polarity Protection
Output Overvoltage Protection
Output Current
Absolute Maximum Ratings
B WP
-
15
/
100
-
D48
Output
Configuration:
B
= Bipolar
Wide Range Input
Alternate Pinout
Nominal Output Voltages:
±5, ±12 or ±15 Volts
Input Voltage Range:
D5
= 4.5-9Volts (5V nominal)
D12
= 9-18Volts (12V nominal)
D48
= 18-72Volts (48V nominal)
Maximum Output Current
Current in mA
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.
–55 to +100°C
+280°C
Storage Temperature
Note:
Some model number combinations may not be available. Contact Murata Power Solutions .
Lead Temperature
(soldering, 10 sec.)
Performance/Functional Specifications
Typical @ T
A
= +25°C under nominal line voltage and full-load conditions unless noted.
➀
Input
These 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 Specifications Table is not implied.
Input Voltage Range:
"D5" Models"
"D12" Models"
"D48" Models"
Input Current:
Input Filter Type
Reverse-Polarity Protection
4.5-9 Volts (5V nominal)
9-18 Volts (12V nominal)
18-72 Volts (48V nominal)
See Ordering Guide
Pi
Yes (Instantaneous, 2A maximum)
Output
TECHNICAL NOTES
V
OUT
Accuracy
(50% load)
Temperature Coefficient
Ripple/Noise
(20MHz BW)
Line/Load Regulation
Efficiency
Isolation Voltage
Current Limiting
"D5" Models
"D12" and "D48"
±1%, maximum
±0.02% per °C
See Ordering Guide
See Ordering Guide
See Ordering Guide
See Ordering Guide
Power-limiting technique, auto-recovery
Hiccup technique, auto-recovery
Dynamic Characteristics
Floating Outputs
Since these are isolated DC/DC converters, their outputs are "floating." Any
BWP model may be configured to produce an output of 10V, 24V or 30V
(for ±5V, ±12V or ±15V models, respectively) by applying the load across the
+Output (pins 11 and 14) and –Output pins (pins 2 and 23), with either output
grounded. The Common (pins 3, 10,15 and 22) should be left open. Minimum
20% loading is recommended under these conditions.
Filtering and Noise Reduction
All BWP 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. Output capacitors should
be connected between their respective output pin (pins 2, 11, 14 and 23) and
Common (pins 3, 10, 15 and 22) as shown in Figure 2. 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
47μF, 15V
"D12" Models
10μF, 35V
"D48" Models
4.7μF, 100V
To Reduce Output Ripple
±5V Outputs
47μF, 10V, Low ESR
±12/15V Outputs
22μF, 20V, Low ESR
Transient Response
(50% load step)
Switching Frequency:
"D48" Models
"D5" and "D12"
200μsec to ±1.5% of final value
200kHz
170kHz
Environmental
Operating Temperature
See derating curves
Storage Temperature
–40 to +85°C with derating
–40 to +100°C
Physical
Dimensions
Case Material
Pin Material
Weight
1.25" x 0.8" x 0.45" (31.8 x 20.3 x 11.4 mm)
Diallyl phthalate, UL94V-0 rated
Brass, solder coated
0.5 ounces (14.2 grams)
➀
These power converters require a minimum 10% loading to maintain specified regula-
tion. Operation under no-load conditions will not damage these devices; however they
may not meet all listed specifications.
www.murata-ps.com
23 Oct 2009
email: sales@murata-ps.com
MDC_BWP Models.B04
Page 3 of 4
Dual Output BWP Models
DIP Packaged, Standard-Pinout
3 Watt, DC/DC Converters
CUSTOM CAPABILITIES
+OUTPUT
1, 24
+INPUT
+
C
IN
12, 13
–INPUT
2, 23
–OUTPUT
COMMON
+
C
OUT
3, 10, 15, 22
11, 14
+
C
OUT
Murata Power Solutions' 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 capa-
bility; 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.
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-effective
power converters available.
Figure 2. Using External Capacitors to Reduce
Input/Output Ripple/Noise
Input Fusing
Certain applications and/or safety agencies may require the installation of
fuses at the inputs of power conversion components. For MPS BWP 3 Watt
DC/DC Converters, you should use fast-blow type fuses with values no greater
than the following:
Fuse Value
V
IN
Range
"D5"
1.5A
"D12"
1A
"D48"
0.5A
Murata Power Solutions, Inc.
11 Cabot Boulevard, Mansfield, MA 02048-1151 U.S.A.
ISO 9001 and 14001 REGISTERED
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.
© 2009 Murata Power Solutions, Inc.
www.murata-ps.com/locations
23 Oct 2009
email: sales@murata-ps.com
MDC_BWP Models.B04
Page 4 of 4
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