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P82B96: Specification of VOL for TX, Ty

Michiaki Tanii
Expert 4810 points

Part Number: P82B96

Hi,

Could you kindly advise the specification of VOL for Tx, Ty like Sx, Sy ?

Thank you and best regards,

Michiaki

  • 0
    TI__Guru 53535 points

    Hi Michiaki,

    We don't specify these values because it can vary widely based on the conditions of the device. Since Rx,Ry have a wide input threshold (0.5xVcc typ) and the Tx,Ty driver strength is so large, we don't typically see an issue here.

    As an example estimate, we can divide the test conditions of Vtx = 1V by the Dynamic output sink capabilities (Iiot) of Tx,Ty of 60mA MIN to get an Rds(on) of ~16.7-Ohm. Using a Rpu value of 160-Ohm, the Vol would come out to be near 9%Vcc. Note that this value will vary with the amount of sink current, Rpu values, and temperature.

    Regards,
    Eric