BWR Series
www.murata-ps.com
15-17W, Dual Output DC/DC Converters
Typical units
FEATURES
PRODUCT OVERVIEW
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Output voltages: ±5, ±12 or ±15 Volts
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Input voltage ranges:
10-18V, 18-36V or 36-75V
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Small packages, 1" x 2" x 0.48"
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Industry-standard pinouts
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Low cost; Highly reliable
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Proven SMT-on-pcb construction
n Designed to meet IEC/UL60950-1 safety
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mark available (75V-input models)
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1500Vdc isolation; 100% tested
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Efficiencies to 86%
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–40 to +100°C operating temperature
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Thermal protection
For your mid-range power requirements, it’s hard to beat the combination of small packaging, low
cost, proven reliability and outstanding electrical performance
offered by the 15-17W, dual-output models of MPS’s A-Series DC/DC converters. These highly efficient,
rugged converters combine straightforward circuit topologies, the newest components, proven SMT-onpcb construction methods, and highly repeatable automatic-assembly techniques. Their superior durability is substantiated by a rigorous in-house qualification program.
The input voltage ranges of the BWR 15-17 Bipolar Series (10-18V for "D12A" models, 18-36V for
"D24A" models and 36-75V for "D48A" models) make them excellent candidates for telecommunication
system line drivers, or distributed power architectures. Their ±5, ±12 or ±15 Volt outputs cover virtually
all standard applications.
These popular power converters are fully isolated (1500Vdc 100% tested) and display excellent line
and load regulation (±0.5% max. for line and load). They are completely I/O protected (input overvoltage
shutdown and reverse-polarity protection, output current limiting and overvoltage protection) and contain
input (pi type) and output filtering to reduce noise.
These extremely reliable, cost-effective power converters are housed in standard 1" x 2" x 0.48"
UL94V-0 rated plastic packages. They offer industry-standard pinouts and are ideally suited for highvolume computer, telecom/datacom, instrumentation and ATE applications.
n
On/Off control
+OUTPUT
(4)
+INPUT
(1)
COMMON
(5)
–OUTPUT
(6)
–INPUT
(2)
ON/OFF
CONTROL
(OPTION)
(3)
PWM
CONTROLLER
OPTO
ISOLATION
Figure 1. Simplified Schematic
REFERENCE &
ERROR AMP
Typical topology is shown
For full details go to
www.murata-ps.com/rohs
www.murata-ps.com/support
MDC_BWR15-17W.D03 Page 1 of 9
BWR Series
15-17W, Dual Output DC/DC Converters
➀
Performance Specifications and Ordering Guide
Output
R/N (mVp-p) ➁
Typ.
Max.
Regulation (Max.)
Line
Load ➂
±1500
75
100
±0.5%
±1500
75
100
±0.5%
±5
±1500
75
100
BWR-12/725-D12A-C
±12
±725
75
BWR-12/725-D24A-C
±12
±725
75
VOUT
(Volts)
IOUT
(mA)
BWR-5/1500-D12A-C
±5
BWR-5/1500-D24A-C
±5
BWR-5/1500-D48A-C
Root Model ➄
To Be Discontinued *
In Production
➀
➁
➂
➃
➄
Input
Efficiency
Min.
Typ.
IIN ➃
(mA/A)
Package
(Case,
Pinout)
VIN Nom.
(Volts)
Range
(Volts)
±0.5%
12
10-18
240/1.5
79%
81%
C14A, P43
±0.5%
24
18-36
112/0.75
81%
83%
C14A, P43
±0.5%
±0.5%
48
36-75
59/0.38
81%
83%
C14A, P43
100
±0.5%
±0.5%
12
10-18
265/1.7
82%
83.5%
C14A, P43
100
±0.5%
±0.5%
24
18-36
127/0.85
83%
85%
C14A, P43
BWR-12/725-D48A-C
±12
±725
75
100
±0.5%
±0.5%
48
36-75
62/0.4
84%
86%
C14A, P43
BWR-15/575-D12A-C
±15
±575
75
100
±0.5%
±0.5%
12
10-18
266/1.7
82%
84%
C14A, P43
BWR-15/575-D24A-C
±15
±575
75
100
±0.5%
±0.5%
24
18-36
125/0.84
84%
86%
C14A, P43
BWR-15/575-D48A-C
±15
±575
75
100
±0.5%
±0.5%
48
36-75
65/0.41
85%
87%
C14A, P43
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.
Balanced loads, 10% to 100% load step.
Nominal line voltage, 10% load/100% load conditions.
These are not complete model numbers. Please use the part number structure when ordering.
* Last-Time-Buy date is 3/31/2024.
P A R T
N U M B E R
S T R U C T U R E
M E C H A N I C A L
S P E C I F I C A T I O N S
B WR - 12 / 725 - D48 A - C
Output Configuration:
B = Bipolar
RoHS-6 Hazardous
Substance Compliant*
2.00
(50.80)
PLASTIC CASE
0.465
(11.81)
Case C14A
Wide Range Input
Nominal Output Voltages:
±5, ±12 or ±15 Volts
Maximum Output Current
in mA from each output
STANDOFF
0.015 (0.38)
A-Series
High Reliability
Input Voltage Range:
D12 = 10-18 Volts (12V nominal)
D24 = 18-36 Volts (24V nominal)
D48 = 36-75 Volts (48V nominal)
0.040 ±0.002 DIA.
(1.016 ±0.051)
0.20 MIN
(5.08)
C
Positive On/Off control function (pin 3)
N
Negative On/Off control function (pin 3)
* Contact Murata Power Solutions for availability.
Some model number combinations may not be available. Please contact Murata Power
Solutions for more information.
0.100
(2.54)
5
2
0.400
(10.16)
6
3
Part Number Suffixes
No Suffix Pin 3 not installed
4
1
1.00
(25.40)
BWR 15-17 Watt DC/DC's are designed so an On/Off Control function
with either positive polarity ("C" suffix) or negative polarity ("N" suffix)
can be added to the pin 3 position. Models ordered without On/Off
control (without C or N suffix) will not have pin 3 installed.
0.60
(15.24)
0.800
(20.32)
BOTTOM VIEW
0.200
(5.08)
DIMENSION ARE IN INCHES (MM)
I/O Connections
Pin Function P43
1 +Input
2
–Input
3 On/Off Control*
4
+Output
5 Output Return
6
–Output
* Pin is optional
0.800
(20.32)
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.
www.murata-ps.com/support
MDC_BWR15-17W.D03 Page 2 of 9
BWR Series
15-17W, Dual 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:
D12A Models
D24A Models
D48A Models
10-18 Volts (12V nominal)
18-36 Volts (24V nominal)
36-75 Volts (48V nominal)
Dynamic Characteristics
Transient Response:
(50-100% load step to 2% VOUT)
250µsec maximum
Start-Up Time:
VIN to VOUT
On/Off to VOUT
35msec
30msec
Switching Frequency
300kHz (±30kHz)
Environmental
Overvoltage Shutdown:
D12A Models
D24A Models
D48A Models
19-21 Volts
37-40 Volts
77-81 Volts
Start-Up Threshold: ➂
D12A Models
D24A Models
D48A Models
9.4-10 Volts
16.5-18 Volts
34-36 Volts
MTBF
Bellcore, ground fixed, fullpower
25°C ambient, 1 million hours
Operating Temperature (ambient):
-40 to +85°C with derated power (see derating curves)
Thermal Shutdown
115°C
Storage Temperature
–40 to +120°C
Flammability
Undervoltage Shutdown: ➂
D12A Models
D24A Models
D48A Models
7-8.5 Volts
15.5-17.5 Volts
32.5-34.5 Volts
UL 94V-0
Physical
Dimensions
1" x 2" x 0.48" (25.4 x 50.8 x 12.19mm)
Case Material
Diallyl Phthalate
See Ordering Guide
5mA
Pin Material
Gold-plate over copper alloy
Weight
1.19 ounces (34 grams)
Input Reflected Ripple Current ➅
10 mAp-p
Primary to Secondary Insulation Level Functional
Input Filter Type
Pi
Reverse-Polarity Protection
Brief duration, 5A maximum.
Input Current
Normal Operating Conditions
Standby Mode (Off, OV, UV)
On/Off Control: ➃ ➄
C Models
On = open or 13V- +VIN, IIN = 1mA max.
Off = 0-0.8V, IIN = 1mA max.
On = 0-0.5V, IIN = 3mA max.
Off = open or 3.5- +VIN, IIN = 1mA max.
N Models
Output
VOUT Accuracy (balanced half load)
±2.0%, maximum
Minimum Load Requirement ➁
10%
Ripple/Noise (20MHz BW) ➀ ➅
See Ordering Guide
Line/Load Regulation
See Ordering Guide
Efficiency
See Ordering Guide
Isolation Voltage
1500Vdc, minimum
Isolation Capacitance
550pF
Isolation Resistance
10MOHM
Current Limit Inception (@ 98% VOUT)
±5V Models
±12V Models
±15V Models
1.9-2.5A
1-1.5A
0.85-1.2A
Short-Circuit Current
±5V Models
±12V Models
±15V Models
800mA maximum
700mA maximum
700mA maximum
Overvoltage protection
±5V Models
±12V Models
±15V Models
Output voltage comparator
5.45-7.15 Volts
13-15.8 Volts
16.2-19.8 Volts
Maximum Capacitive Loading
1000µF (per output)
Temperature Coefficient
±0.02% per °C
➀ All models are specified with no external I/O capacitors.
➁ See Technical Notes/Graphs for details.
➂ Applying a voltage to the On/Off Control (pin 3) when no input power is applied to the
converter can cause permanent damage to the converter.
➃ Output noise may be further reduced with the addition of additional external output capacitors.
See Technical Notes.
➄ The On/Off Control is designed to be driven with open-coolector logic or the application of
appropriate voltage levels. Voltages may be referenced to the –Input (pin 2).
➅ Input Ripple Current is tested/specified over a 5-20MHz bandwidth with an external 33µF
input capacitor and a simulated source impedance of 220µF and 12µH. See I/O Filtering, Input
Ripple Current and Output Noise for details.
Absolute Maximum Ratings
Input Voltage:
Continuous:
D12A Models
D24A Models
D48A Models
Transient (100msec):
D12A Models
D24A Models
D48A Models
On/Off Control (pin 3) Max. Voltages
Referenced to –Input (pin 2)
"C" Suffix
"N" Suffix
Input Reverse-Polarity Protection
duration only. Fusing recommended.
23 Volts
42 Volts
81 Volts
50 Volts
50 Volts
100 Volts
+VIN (+18 Volts)
+7 Volts
Current must be