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BQ25120: BQ25120 I2C interface

Part Number: BQ25120

Hi TI team,

Could you help explain these parameters as below in BQ25120 datasheet?

tWATCHDOG:

tI2CRESET:

tHIZ_ACTIVEBAT:

Thanks!

BR

Eleven

  • Hello,

    The watchdog timer is used as a safety measure in case of MCU hang-up. When no I2C transaction is made within 50s, all registers except MRRESET_VIN and MRREC will be reset. This can be disabled by placing the charger in Hi-Z mode.

    I2C will reset if SDA is held low longer than tI2CReset to avoid I2C hang-ups.

    THiz_Activebat is the time is the time delay required between entering active BAT and the start of I2C transactions.