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BQ27220: How BQ27220 can be commanded to come out of SHUTDOWN

Jefin George
Prodigy 100 points
Part Number: BQ27220


Tool/software:

In our design, we are using the BQ27220 as a fuel gauge, and the GPOUT pin is connected to the host through a 10k pull-up resistor (as per the datasheet). I need to know how the BQ27220 can be commanded to come out of SHUTDOWN mode, given that the GPOUT pin is configured as an output. Our design schematic is attached.

  • 0
    TI__Mastermind 26401 points

    Hello, 

    The only way to wake the gauge from shutdown mode is to toggle GPOUT. So if you have GPOUT connected to a GPIO, then all you will need to do to wake the gauge from shutdown mode is to have an MCU toggle the pin. 

    Regards, 

    Jonny.