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Original question:

TUSB4020BI: About Absolute Maximum Ratings

TUSB4020BI: About Maximum Input Supply Current

user6428397
Prodigy 70 points
Part Number: TUSB4020BI


Hi,

For chapter 7.6 (Hub Input Supply Current) of the data sheet, does this table show typical current values?
If so, please tell us the maximum current specifications.

This question is because we want to know how much current of power supply we should have.

Regards,

  • 0
    TI__Guru 60870 points

    Hi,

    The power numbers in the datasheet are the highest consumption numbers seen under the noted conditions with nominal voltages at room temp.  I would recommend a 20% guard band for max current to account for voltage / temp differences.

    Regards,

    JMMN