BST-5 C&D Technologies., BST-5 Datasheet - Page 3

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

Performance/Functional Specifications
Typical @ T
➀ These power converters require a minimum 10% loading to maintain specified regulation.
➁ Application-specific internal input/output filtering can be recommended and perhaps added
➂ Devices can be screened or modified for higher guaranteed isolation voltages. Contact MPS
➃ The current limit inception point is dependent on the input voltage. Therefore, it is possible
Input Voltage range:
Input Current
Input Filter Type ➁
reverse-Polarity Protection
V
Temperature Coefficient
ripple/Noise (20MHz BW) ➁
Line/Load regulation
Efficiency
Isolation Voltage ➂
Short Circuit Protection: ➃
Transient response (50% load step)
Switching Frequency:
Operating Temperature
Storage Temperature
Dimensions
Case Material
Pin Material
Weight
Operation under no-load conditions will not damage these devices; however they may not
meet all listed specifications.
internally upon request. Contact MPS Applications Engineering for details.
Applications Engineering for details.
to draw current beyond the rated capacity. Users should fully characterize their load conditions.
OUT
"D5" Models
"D12" Models
"D48" Models
“D5” Models
“D12” and “D48” Models
“D48” Models
“D5” and “D12” Models
(Ambient, no derating)
accuracy (50% load)
A
= +25°C under nominal line voltage and full-load conditions unless noted.
Dynamic Characteristics
Environmental
Physical
Output
Input
4.5-9 Volts (5V nominal)
9-18 Volts (12V nominal)
18-72 Volts (48V nominal)
See Ordering Guide
Pi
Yes (Instantaneous, 2A maximum)
±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
200µsec to ±1.5% of final value
200kHz
170kHz
–40 to +75°C
– 55 to +100°C
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 with nickel
underplate
0.5 ounces (14.2 grams)
www.murata-ps.com
➀
P a r
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. Minimum 20% loading is recommended
under these conditions.
Filtering and Noise Reduction
All BST 3 Watt DC/DC Converters achieve their rated ripple and noise specifica-
tions 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 con-
nected between their respective output pin (pins 6 and 8) and Common (pins 5
and 7) 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.
internal input/output filtering of these units to meet your specific requirements.
Contact our Applications Engineering Group for additional details.
TEChNICAL NOTES
In critical, space-sensitive applications, MPS may be able to tailor the
Input Voltage:
Input reverse-Polarity Protection
Output Overvoltage Protection
Output Current
Storage Temperature
Lead Temperature (soldering, 10 sec.)
conditions may adversely affect long-term reliability. Proper opera-
tion under conditions other than those listed in the Performance/
Functional Specifications Table is not implied.
Low-Cost, High Reliability 3 Watt, DC/DC Converters
These are stress ratings. Exposure of devices to any of these
"D5" Models
"D12" Models
"D48" Models
To Reduce Input Ripple
To Reduce Output Ripple
Dual Output BST Models
Technical enquiries email: [e-mail], tel:
"D5" Models
"D12" Models
"D48" Models
±5V Outputs
±12/15V Outputs
Absolute Maximum Ratings
12 Volts
20 Volts
80 Volts
Current must be <2A. Brief duration
only. Fusing recommended.
None
Maximum current and short-circuit
duration are model dependent. “D12”
and “D48” models can withstand
sustained output short circuits.
–55 to +100°C
+280°C
47µF, 15V
10µF, 35V
4.7µF, 100V
47µF, 10V, Low ESR
22µF, 20V, Low ESR
MDC_BST 3W Models.A02 Page 3 of 4
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