BST-5 C&D Technologies., BST-5 Datasheet

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BST-5

Manufacturer Part Number
BST-5
Description
Low-cost, High Reliability 3 Watt, Dc/dc Converters
Manufacturer
C&D Technologies.
Datasheet

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FEATURES
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–40 to +75°C full-power operation
Lowest cost! Highest reliability!
100% SMT-on-pcb, including magnetics
100% automatically assembled
Standard "DIP" package and pinouts
Fully isolated, 1000Vdc guaranteed
±5, ±12 or ±15 Volt outputs
Choice of 3 wide-range inputs:
Guaranteed efficiencies to 75%
Internal input/output filtering
UL1950/C22.2 No. 950/IEC950-1 certified
Modifications and customs for OEM’s
4.5-9 Volts
9-18 Volts
18-72 Volts
www.murata-ps.com/rohs
For full details go to
 
Typical topology is shown.
+V
–V
IN
IN
www.murata-ps.com
www.murata-ps.com
PRODUCT OVERVIEW
Rarely, has a Series of low-power DC/DC converters
been defined by both low cost and Murata’s quality
and reliability. Our new BST Series of dual-output
3W DC/DC’s achieves this “best-of-both-worlds”
status by implementing a proven circuit architecture
(170-200kHz flyback design) as a full, SMT-on-pcb
assembly (including surface-mount magnetics) that is
truly 100% automatically assembled. Packaged in min-
iature 1.25" x 0.8", DIP-like plastic packages (UL94V-0
rated) and requiring no external components, BST
Series DC/DC’s bring true component-like convenience
to designers of today’s distributed power systems.
voltage ranges are 4.5-9V (“D5” models), 9-18V
(“D12” models) or an ultra-wide 18-72V (“D48”
models). BST DC/DC’s are fully isolated (1000Vdc
guaranteed) and include input (pi type) and output
filters within their package. Output transient response
CONTROLLER
Output voltages are ±5, ±12 or ±15 Volts. Input
PWM
Figure 1. Simplified Schematic
ISOLATION
OPTO
Low-Cost, High Reliability 3 Watt, DC/DC Converters
REFERENCE &
Dual Output BST Models
ERROR AMP
Typical units
Technical enquiries email: sales@murata-ps.com, tel:
Technical enquiries email: sales@murata-ps.com, tel:
is a quick 200µsec, while output ripple and noise are
typically 75mVp-p.
with a thermally conductive potting compound that
contributes to their outstanding moisture/vibration
resistance and impressive MTBF. They operate over
the full –40 to +75°C temperature range without der-
ating. All models have been thoroughly characterized
(electrically, mechanically and thermally), qualified
(including HALT), and EMI/EMC tested. Additionally,
they are certified to UL1950, CSA 22.2 No. 950 and
IEC950.
selections for telecom/datacom, computer and
process-control applications demanding small size,
low cost and high reliability. If required, their design
“flexibility” allows for easy modification to your
application-specific requirements.
+V
COMMON
These rugged modules are fully encapsulated
Murata’s BST Model 3W DC/DC’s are excellent
OUT
MDC_BST 3W Models.A02 Page 1 of 4
+1 508 339 3000
+1 508 339 3000

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BST-5 Summary of contents

Page 1

... PRODUCT OVERVIEW Rarely, has a Series of low-power DC/DC converters been defined by both low cost and Murata’s quality and reliability. Our new BST Series of dual-output 3W DC/DC’s achieves this “best-of-both-worlds” status by implementing a proven circuit architecture (170-200kHz flyback design full, SMT-on-pcb assembly (including surface-mount magnetics) that is truly 100% automatically assembled ...

Page 2

... Performance Specifications and Ordering Guide ORDERING GUIDE SUMMARY V I out out Models (Volts) (mA Max.) BST-5/250-D12 ±5 ±250 BST-5/250-D48 ±5 ±250 BST-12/105-D5 ±12 ±105 BST-12/125-D12 ±12 ±125 BST-12/125-D48 ±12 ±125 BST-15/85-D5 ±15 ±85 BST-15/100-D12 ±15 ±100 BST-15/100-D48 ± ...

Page 3

... Floating Outputs Since these are isolated DC/DC converters, their outputs are “floating.” Any BST 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 (pin 6) and –Output (pin 8), with either output grounded. The Common (pins 5 and 7) should be left open ...

Page 4

... 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’s BST 3 Watt DC/DC Converters, you should use slow-blow type fuses with values no greater than the following: ...

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