LM5170-Q1: LM5170-Q1_Circuit breaker

David Kim6

Prodigy 220 points

Part Number: LM5170-Q1

Try to use the circuit breaker of the LV port as shown below.

Can turn off the circuit breaker function if reverse voltage is applied to the lv-port?

Thanks

over 7 years ago

0 Youhao Xi over 7 years ago

TI__Guru* 79475 points

Hi David,

The circuit breaker does not help in the reverse voltage protection, and there will be a path from the IC's esd structure and the body diode. In order to protect against reverse polarity, you may consider the following circuit.

5228.Reverse Polarity.pdf

Thanks,

Youhao Xi, Applications Engineering

Power management

Power management forum

LM5170-Q1: LM5170-Q1_Circuit breaker