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bq24160 keep registaer setting

PAN-M
Mastermind 8375 points
Other Parts Discussed in Thread: BQ24160

Hi

Can bq24160 hold the input register even if voltage descended?
Is the register default setting if VIN becomes under UVLO?

Regards,
PAN-M

  • 0
    TI__Genius 13700 points

    Hello Pan-M,

    Are there particular register values that you are concerned about?

    The only events that typically result in changes to the register values are when new values are written via I2C and if the watchdog/safety timer is used and allowed to time out.

    In the case of the watchdog safety timer if the counter is not cleared regularly by I2C command the device will reset the register values to default. (Pg. 20 of the datasheet)

    In the event of UVLO there should be no change to the programmed register values.

  • 0
    TI__Guru**** 167196 points

    We only warranty that the registers will stay if VIN stays above UVLO (assuming no battery is connected).

  • 0 in reply to Jeff F
    Mastermind 8375 points

    Thank you for answer.

    There is no specific register about which our customer is concerned.
    Our customer think they would like to keep the value of the register only set up by I2C at the turn off.
    After all, VIN  seems to should be more than UVLO.
    I understood it.

    Thanks and Regards,
    PAN-M