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PCA9306: About when SDA/SCL is floating.

Kengo.Y
Guru 11165 points
Part Number: PCA9306

Hi team.

I'd like to give me your advice.

In our case, when EN(connect to Vref2) is GND(0V), SDA/SCL will be floating.

Is there any problem with the device?

Please let me know if there is a break or current consumption may increase or etc.

Sincerely.

Kengo.

  • 0
    TI__Guru 72161 points
    Hey Kengo,

    "Is there any problem with the device?"
    The device will be disabled. Current consumption will basically be Vref2/200k if your Vref2 voltage is still there. If Vref2 is also GND then consumption current should be close to zero.

    Thanks,
    -Bobby