BWR-15-330-D48A-C Datasheet, PDF (3/5 Pages) Murata Manufacturing Co., Ltd. – BWR Models 7-10W, 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:
D5A Models
D12A Models
D48A Models
4.7-7.25 Volts (5V nominal)
9-18 Volts (12V nominal)
18-75 Volts (48V nominal)
Input Current
See Ordering Guide
Input Filter Type ➁
Pi
Reverse-Polarity Protection
Yes (Instantaneous, 6A maximum)
Output
VOUT Accuracy (50% load):
±5V Outputs
±12/15V Outputs
±1.5%, maximum
±1%, maximum
Temperature Coefficient
±0.02% per °C
Ripple/Noise (20MHz BW) ➁
See Ordering Guide
Line/Load Regulation
See Ordering Guide
Efficiency
See Ordering Guide
Isolation Voltage ➂
1500Vdc, minimum (functional)
Isolation Capacitance
200pF
Current Limiting
Auto-recovery
Overvoltage Protection ➃
Zener/transorb clamps, magnetic feedback
Dynamic Characteristics
Transient Response (50% load step) 200µsec max. to ±1.5% of final value
Switching Frequency
165kHz (±15kHz)
Environmental
Operating Temperature (ambient):
Without Derating
With Derating
–40 to +65/70°C (Model dependent)
to +100°C (See Derating Curves)
Storage Temperature
–40 to +105°C
Physical
Dimensions
2" x 1" x 0.375" (51 x 25 x 9.5mm)
Shielding
5-sided
Case Connection:
D5A and D12A Models
D48A Models
Pin 2 (–VIN)
Pin 1 (+VIN)
Case Material
Corrosion resistant steel with
non-conductive, epoxy-based black
enamel finish and palstic baseplate
Pin Material
RoHS: Gold-plated copper alloy with nickel
underplate
Non-RoHS: Solder-coated brass
Weight
1.3 ounces (37 grams)
Flammability
UL 94V-0
➀ These power converters require a minimum 20% loading on each output 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 or perhaps added
internally upon request. Contact MPS Applications Engineering for details.
➂ Devices can be screened or modified for higher guaranteed isolation voltages.
Contact MPS Applications Engineering for details.
➃ D5A Models: Zener/transorb only
BWR Models
7-10W, Dual Output DC/DC converters
Absolute Maximum Ratings
Input Voltage:
D5 Models
D12 Models
D48 Models
Input Reverse-Polarity Protection
Output Overvoltage Protection
±5V Outputs
±12V Outputs
±15V Outputs
Output Current
Storage Temperature
Lead Temperature (soldering, 10 sec.)
10 Volts
20 Volts
80Volts
Current must be <6A. Brief
duration only. Fusing recommended.
13 Volts, limited duration
28 Volts, limited duration
36 Volts, limited duration
Current limited. Max. current and
short-circuit duration are model
dependent.
–40 to +105°C
+300°C
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.
TECHNICAL NOTES
Floating Outputs
Since these are isolated DC/DC converters, their outputs are "floating." Any
BWR 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 and –Output pins (pins 3 and 5), with either output grounded. The
Common pin (pin 4) should be left open. Minimum 20% loading is recom-
mended under these conditions.
Filtering and Noise Reduction
All A-Series BWR 7-10 Watt DC/DC Converters achieve their rated ripple
and noise specifications without the use of external input/output capaci-
tors. 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
(pin 3 or 5) and Common (pin 4) 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
"D5A" Models
"D12A" Models
"D48A" Models
47µF, 10V
20µF, 35V
10µF, 100V
To Reduce Output Ripple
±5V Output
47µF, 10V, Low ESR
±12/15V Outputs
22µF, 20V, Low ESR
In critical, space-sensitive applications, MPS may be able to tailor the internal
input/output filtering of these units to meet your specific requirements. Con-
tact our Applications Engineering Group for additional details.
www.murata-ps.com/support
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