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BQ25121A: Reset PMIC

Dima S
Prodigy 220 points
Part Number: BQ25121A

Hi

How can I reset PMIC to its default register values?

Thanks.

  • 0
    TI__Genius 16245 points

    Hi,

    the default mode is description in datasheet page 23.

    8.3.11 Default Mode

    The default mode is used when there is no host, or I

    2C communication is not available. If the externally

    programmable pins, ILIM, ISET, and ITERM have resistors connected, that is considered the default mode. If any one of these resistors is tied to GND, the default register settings are used. The default mode can be entered by connecting a valid power source to VIN or the RESET bit (datasheet page45, table22) is written. Default mode is exited by writing to the I2C interface.

    Thanks

  • 0
    TI__Genius 12485 points
    Dima,

    Writing bit B7 to 1 on register 0x09 should reset the register values.

    Regards,
    Gautham