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BQ25898D: QON Pin use

user5861925
Intellectual 570 points
Part Number: BQ25898D

Hi :

The product I designed USES TI BQ25898D.I want to know how to use QON Pin.I'm not going to have a switch on my side to control it.If I want to continue using QON Pin, how to use it.Please also advise, thank you!

  • 0
    TI__Guru**** 166546 points
    Sunny,

    /QON is the BATFET enable/reset control input. When BATFET has been previously turned off (ship mode) via I2C register, taking /QON low for tSHIPMODE (typical 1sec) duration turns on BATFET to exit ship mode. If VBUS is not plugged-in and /QON is taken low for tQON_RST (typical 19.5sec) duration, the BATFET turns off for tBATFET_RST (typical 0.325sec) and then turns back on BATFET to provide full system (SYS) power reset. The pin contains an internal pull-up to maintain default high logic.

    Regards,
    Jeff