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bq24160 fault + charge termination

ayman rjab
Prodigy 70 points

Hello, i have 2 questions about the bq24160 battery charger IC,
1 -  when the 'charger status bits' (STAT_X  bits (Status/Control Register 0x00)  are equal to  'FAULT' (STAT_X == '111')  does the FAULT_X bits (in the same reg) report also this fault??
(i.e : when STAT_X == '111' the FAULT_X == '111' also ??? ) 

2 - when charging is done (termination conditions are met), does the bq24160 send an 128µs interrupt to the Host or it just updates the STAT_X bits to "CHARGE DONE"

I'll be grateful if you can reply to me.   Regards Ayman

  • 0
    TI__Guru**** 166826 points

    Regarding 1, The STAT_x show the current status of the device and are updated dynamically as the IC changes state. The FAULT_x bits show faults that have occurred and are only cleared by reading the bits, assuming the fault no longer exists. If multiple faults occur, the first one is the one that is shown.

    Regarding 2, when charge is complete, the STAT_x bits are updated to charge done and the STAT pin goes from low impedance to high impedance.  The 128us interrupts only occur for faults.