TPS65094: Test sleep S3 system reboot

Ray Chang

Intellectual 1345 points

Part Number: TPS65094

Hi Team,

We tested the TPS650940 in Apollo lake platform.

Test system in S3 loop (S3->S0->S3->S0)

We found the system be rebooted in S3 to S0, is it normally?

Have you meet similar issue before?

over 6 years ago

0 Phil Yi over 6 years ago

TI__Mastermind 48781 points

Hi, Ray,

I hope you can wait for our expert's answer tomorrow; Kevin is OoO today; he will be back tomorrow.

0 Kevin LaRosa over 6 years ago

TI__Genius 17380 points

Hi Ray,

No, to my knowledge we have not seen an issue with TPS650940 which would cause it to switch from S3 to S0 without the SLP_S3B toggling.

If the question is why is the SLP_S3B pin toggling, the PMIC does not control this signal; it comes from the processor and I don't think the PMIC would contribute to that.

Power management

Power management forum

TPS65094: Test sleep S3 system reboot