The SNVS voltage is the output from VIN of the PMIC: PF8101. Is there an internal monitoring in the PMIC itself to monitor the SNVS voltage. If the SNVS becomes 0V will the PMIC send POR signal to the controller
Hi Deepak
I am afraid there is no such monitoring and if SNVS becomes 0V PMIC does not
send POR signal to the controller. As described in sect.15.3 VSNVS LDO/switch PF8100 PF8200 Datasheet:
The VSNVS output keeps regulation through all states, including the system-on, off
modes, power down sequence, watchdog reset, fail-safe transition and fail-safe state as
long as it has a valid input (VIN or LICELL), and the output has been configured by the
OTP_VSNVSVOLT[1:0] registers.
https://www.nxp.com/docs/en/data-sheet/PF8100_PF8200.pdf
Best regards
igor
-----------------------------------------------------------------------------------------------------------------------
Note: If this post answers your question, please click the Correct Answer button. Thank you!
-----------------------------------------------------------------------------------------------------------------------