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TUSB8041: max power requirements?

Andrew Dyer
Intellectual 650 points
Part Number: TUSB8041


What is the maximum power consumption of TUSB8041IRGC at 85°C for VDD33 and VDD?  Datasheet only gives typical at 25°C.

  • 0
    TI__Guru 60870 points
    Hi Andrew,

    Are VDD33 and VDD nominal? If so, I would recommend providing a 15% margin for max values.

    Regards,
    JMMN
  • 0 in reply to JMMN
    Intellectual 650 points

    It's hard to guarantee a nominal voltage with tolerances on regulators, voltage dividers, noise, etc.  I would like a max number to cover process, voltage, and temp.

  • 0 in reply to Andrew Dyer
    TI__Guru 60870 points
    Hi Andrew,

    I understand that nominal voltage is hard to guarantee in a system, but I was wondering if the design was spec'd to run on the high side or not. The power consumption of the part will scale with the voltage rails so if the rails are both run at +10% (3.6V, 1.2V), I would expect to see +10% in power consumption.

    If you are running the device at max temp and max power rails, I wouldn't actually expect the power to be up a full 25%, but this is a safe margin.

    Regards,
    JMMN