This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

TPS3820-Q1: WDI problem

Part Number: TPS3820-Q1
Other Parts Discussed in Thread: TPS3820,

Dear TI Experts,

 I am using TPS3820-50 to monitor voltage~

And when doing test, I find that when it is -40℃, it will reset~  Other temperature  all works good~

The wave is as below, Yellow→reset, Blue→WDI~

The first picture is abnormal situation,and the second picture is normal situation

I guess it‘s WDI that causes the reset~(time out)

But when I use TPS3820-33, it works well in all temperature~

Is it the MCU or  the TPS3820 -50's abnormal that cause the reset when in -40℃?