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LM7480-Q1: Hgate Toff time confirmation

Part Number: LM7480-Q1

Tool/software:

Hi Team,

Some questions would like to confirm with you.

1. Will the R1 and Cdv/dt affect the Toff time of Hgate? I think it shouldn't affect because the circuit only work in startup, is it correct?

When Hgate off, our IC will short the Hgate and OUT to turn off, is it correct?

2. How to determine the Toff time of VHGATE if we used PJQ5462A-AU.

Regards,

Roy