LM5170-Q1: nfault and mosfet short circuit detection

Dongbao Zhou

Part Number: LM5170-Q1

Hello team,

1. For the nFAULT pin, besides the MOS short circuit is detected during start up, are there any other faults that pull down nFAULT?

2. What's the short circuit detection mechanism? Like the detection threshold, duration time etc..

Thanks

Dongbao

0 Youhao Xi over 3 years ago

Hi Donghao,

To answer your requesions:

1. The following events may pull down nFAULT pin in addition to the FET FAULT detection.

2. please refer to the following e2e post.

Thanks,

Youhao Xi, Applications Engineering

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