BQ25896: BQ25896 I2C

Ian Wang

Mastermind 29700 points

Part Number: BQ25896

Hi Sir,

If MCU working voltage is 2.0V, Can BQ25896 support I2C interface?

Thanks, Ian.

over 5 years ago

0 Ning T over 5 years ago

TI__Guru 57611 points

Ian,

When VBUS rises above VVBUS_UVLOZ (3.6V minimum) or BAT rises above VBAT_UVLOZ (2.3V minimum), the sleep comparator, battery depletion comparator and BATFET driver are active. I 2C interface is ready for communication and all the registers are reset to default value.

Thanks,

Ning.

0 Ian Wang over 5 years ago in reply to Ning T

TI__Mastermind 29700 points

Hi Guy,

Below Pin voltage level is based on VCC2 (2.0V), is it?

STAT, /PG,SCL,SDA,CHG_INT

0 Ning T over 5 years ago in reply to Ian Wang

TI__Guru 57611 points

Ian,

VCC2 is the pull-up source. The BQ25896 needs valid power either at VBUS or VBAT as the specs shown in the earlier message in order to support I2C communication.

Thanks,

Ning.

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BQ25896: BQ25896 I2C