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What happen when Boot-Vin of TPS57160 shorted?

Other Parts Discussed in Thread: TPS57160-Q1

Dear supprt member

I have one question about operation of TPS57160-Q1. 

My customer performed BOOT-Vin short test of TPS57160-Q1 and got attached waveform.

Could  you teach mechanism of this operation?

I guess high side FET does not work enough by Vin-Boot short.

And  Boot UVLO  is working or thermal shut dawn is working by  increasing swtching loss.

TPS57160 short test waveform.xlsx

Regareds

Tomohiro Nagasawa