FS8430 can not wake up

[hongyuyan]

Hi NXP Team,

I have a problem about FS8430.

when I give the BAT and wake signal to FS8430 at the same time，it can start up normally at the voltage from 8V ~ 36V.But when I  give the BAT at 9V first and then wake signal, FS8430 can not start up normally. At this condition, beside 8v~10V, FS8430 can start up normally.

I want to know what is the main reason.

[guoweisun]

HI

Suggest your do experiment on debug mode then monitor your Vbat voltage directly in SBC VSUP1/2 pin and WAKE pins voltge.