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BQ25710: When remove the adapter

Masayoshi Takahashi
Intellectual 1530 points
Part Number: BQ25710


Hi team,

Thanks for lot of support for this device.

I got a question about the device status when remove the adapter.

When the customer remove the adapter, there is the input signal for SCL, SDA, CHRG_OK, CMPOUT from MCU.

Is there any issue about this situation?

Regards,

Yoshi

  • 0
    TI__Expert 3320 points

    Hi Yoshi:
        

         CMPOUT and CHRG_OK are all open drain output signal. They are pulled up by external pull up resistors. After adapter is removed, CHRG_OK should be pull low by 25710, if MCU may not be able to pull up the signal if the strength is not enough.

          For SCL, SDA no matter whether adpator exist or not, as long as our IC is alive, then it should communicate with MCU without disturbance. 

          Does customer have any specific concern for those senarios?

    Regards

    Shishuo

         

  • 0 in reply to Shishuo Zhao
    TI__Intellectual 1530 points

    Hi Shishuo,

    Thanks for your quick reply. I understood.

    The customer have just curious.

    Regards,

    Yoshi