bsv-1.5s12r0h XP Power Limited, bsv-1.5s12r0h Datasheet - Page 50

• Manufacturer Part Number: bsv-1.5s12r0h
• Description: Pol Dc-dc Converter
• Manufacturer: XP Power Limited

9. Protection against reverse connection method for input power supply (e.g.)
10. Over voltage protection circuit (e.g.)
.
The product is non-isolated between input and output and steps down from (+) to (+).
The product will break if the input polarity is connected in reverse. Therefore, adding protection circuit is
recommended as shown below.
Below is a diagram using a fuse and a diode.
The product does not have over voltage protection feature.
When switch element inside the product breaks in short mode, DC input voltage will be affected
directly to the output. Therefore the input shut-off circuit below is recommended in case of breakage in
over voltage mode.
Note1: ON/OFF control will not work when the converter breaks in over voltage mode.
Note2: If there is ON/OFF control feature on the electrical supply source side, it can also be used.
Note3: DC power supply should have enough capacity to melt a fuse.
DC-DC Converter
+Vin
+Vin
Small Type High-Speed Response POL DC-DC Converter
FUSE
FUSE
SCR
D1
P-Good
on/off
+Vin
P-Good
on/off
+Vin
8
7
2
8
7
2
BSV-1.8S4R0N
BSV-1.8S4R0N
1,4
GND
1,4
GND
5
6
3
Test pin
Trim
+Vout
4
6
3
+Vout
Test pin
Trim
Over
voltage
detection
circuit
BSV-nano Series
Load
Load
BDD20100416
11