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Smart Power Switches Forum Discussions

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Hello everyone ;

Could you suggest a circuit to isolate BTS5215L from microcontoller using optocoupler?

Any suggestion to protect BTS5215L from reverse battery when battery is conncted reveresed ?

Thank you inadvanced .
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User270
Level 5
5 solutions authored First solution authored
Level 5
There is nothing special about using optocouplers to isolate input pins INx and status pins STx from microcontroller. Just take care about Vin(T+) and Vin(T-) voltages at input pins to switch on and off the output. For the status pins see picture at page 9 in the datasheet.

For reverse battery protection you may use MOSFET with low Rdson -> see application note Automotive MOSFET.
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