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TPS7B63-Q1: Watchdog

Part Number: TPS7B63-Q1

Tool/software:

Hi team,

My customer is evaluating TPS7B63-Q1 in their project, they meet below issue now, could you help give some comments? Thank you!

They switch the window watchdog to standard watchdog via the external control WTS. When OTA, the customer first controls the WTS to switch to the standard watchdog, and re-initialize WD via WD_EN, when WDI starts feeding the watchdog, they found the WDO will be pulled down and reset.

Could you please share what is the potential reason for this issue? This problem does not occur on all boards, but only on single board.  

Regards,

Ivy