This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

TCA9617B: SCLB SDAB working current

Part Number: TCA9617B

Hi Team,

Is there any way to evaluate the working current on SCLB and SDAB pin? We can only find quiescent current spec in the datasheet.

Regards,

  • What do you mean with "working current"?

    "Quiescent" means that the I/Os are not switching. The datasheet lists the supply current for both high and low states; the total supply current depends on how much the I²C bus is in each state.

    The current sunk by the outputs when they are driving low depends mainly on the pull-up resistor values, so it cannot be specified in the datasheet. Use I = (VCC − VOL) / Rpullup, where VOL is about 0.5 V.