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BQ27520-G4: use CE pin to reset I2C BUS CLOCK keep pulling low

Ann_Lien
Genius 14360 points
Part Number: BQ27520-G4

Hello expert,

Customer is facing I2C BUS CLK low issue and asking to use CE pin to reset I2C BUS since they have another question on I2C BUS with "pulling low 2s CLK/DATA". Is this way workable or not? Thanks a lot!!

Best regards,

Ann Lien

  • 0
    TI__Guru* 76230 points

    The CE pin will reset the gauge, ie it will undergo a POR. This will likely also reset the i2c bus.This is not a recommended approach because the gauge would loose any passed charge accumulated over the course of the discharge and could likely affect gauge accuracy

    thanks

    Onyx