tps65917-q1: NRESWARM minimum activation duration

Lloyd Hwang

Part Number: TPS65917-Q1
Other Parts Discussed in Thread: TPS65917-Q1, TDA2

Hello expert,

My customer is using TPS65917-Q1 (0x32 OTP version) at TDA2 based Front Camera platform.

Customer would like to know what would be the minimum activation duration of NRESWARM and to gurantee the NRESWARM input.

Best regards,

Lloyd

over 8 years ago

0 Karl Wallinger over 8 years ago

TI__Genius 16410 points

Hi Lloyd,

I couldn't find any debounce time in the datasheet. I measured the time from NRESWARM=low to the first rail being reset, and found it was 200us. So I'm not sure the minimum time, but 200us should be long enough to generate a valid NRESWARM level.

Regards,
Karl

0 Lloyd Hwang over 8 years ago in reply to Karl Wallinger

TI__Expert 3860 points

Hi Karl,

Thanks for your feedback.

I'll inform that the recommendation would be more than 1ms.

Regards,

Lloyd

Power management

Power management forum

tps65917-q1: NRESWARM minimum activation duration