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BQ25792: Is there a control signal that I can use to enable and disable the SYS output on BQ25792 battery charger?

Luke Steenstra
Prodigy 10 points
Part Number: BQ25792

Tool/software:

I see that CE_N on pin 13 can be used to enable and disable the BAT output pin. Is there a way to enable and disable SYS on pin 25 with an external signal? If not, is there a register than can be toggled to control SYS?

  • +1
    TI__Guru**** 166076 points

    Hi Luke,

    The EN_HIZ bit =1 and ILIM_HIZ = GND disables the converter but turns on the BATFET full so that SYS=BAT.  Unfortunately, there is no bit to disable the SDRV pin so that the shipFET turns off to disconnect the battery from SYS. 

    Regards,

    Jeff