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BQ20Z80: won't go into Shutdown while using bqEVSW

Victor Salomon
Expert 3910 points
Part Number: BQ20Z80
Other Parts Discussed in Thread: BQ29312A

Hello team,

I am supporting an application using bq20z80, the goal is to put the Gauge in Shutdown mode in order to remove the voltage from the exposed pins, and it doesn’t seem to work.

In the application the Gas Gauge evaluation software is being used to write the 0x0010 command to the Gas Gauge, per Page 63 of the Technical Reference Manual.

Any recommendation?

Here is a Screenshot:

  • 0
    TI__Expert 4065 points
    Hi Vector,
    Hope you are doing great, please make sure that the current =0 and the voltage at the bq29312A
    PACK pin < Charger Present threshold when you send the command, these two condition must be meet for the gauge to go to sleep.
    Regards,
    Haidar