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BQ78350: How do I verify the device is in shutdown mode?

Daniel Foster63
Prodigy 10 points
Part Number: BQ78350

I can read OperationStatus()[SDM] bit 16 of 0x0054 but it is always 1 whether I've sent 0x0010 to ManufacturerAccess() twice or not. The device usually behaves as if it is in SDM after sending those commands but I'd like a way to verify.

  • 0
    TI__Guru* 81034 points
    Hi Daniel,

    When using the Shutdown command, the BQ78350 will send the command to the AFE to turn-off the REGOUT supply. You can watch the voltage on the REGOUT supply to make sure it turns off. Also, the supply current for the BQ78350 will become very low during Shutdown, so you could monitor that as well.

    Best regards,
    Matt