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BQ76940:Problems with the continuous operation of DSG and CHG for AFE

If the drive pins of the AFE DSG and CHG are output, will the output of more than 1 mA for a long time cause problems? This is our drive circuit, and the measurement found that the DSG and CHG voltages are 6.7v when working

  • Hello Tainxia,

    We never use the driver with such low resistances, not sure if our drivers would be able to handle that current for long periods of time. It is also very inefficient.

    We typically use 1-MOhm or above. 

    What is going on in these pictures? This does not seem like a typical application, it seems like these are being used as pull-downs. Can you explain your system?

    Best Regards,

    Luis Hernandez Salomon