I noticed an unexepted behavior of the CMPIN pin if I set the BQ25713 into low power mode.
The CMPIN min is connected to 3.3V trough a 100K pullup resistor, also the alert open drain output from my gas gauge MAX17261 is connected to it.
So the gas gauge is able to interrupt the charging process, if something goes wrong.
As soon I set the BQ25113 into low power mode ( set EN_LWPWR of REG01 to 1) The voltage at the CMPIN pin is pulled to 1.4V.
I tried to enable EN_PROCHOT_LPWR (REG31 [6] or [5] to 1) but this does not help.
As soon I leave the low power mode the voltage at CMPIN is 3.3V again.
This behavior costs additional 20uA (1.9V / 100k pullup) in low power mode, I have to find a solution for this.
How can I avoid this?
Should i connect the Pullup Vcc to a switchable source, or is there anything I can change in the configuration of the BQ23713?
Thank a lot.
BR Stefan