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TUSB9261: USB VBUS

Musa Ergen
Prodigy 40 points
Part Number: TUSB9261

Hi,

Recommended Operating Conditions for VBUS is max. 1.155V at datasheet. But, VBUS is suppplied by 5V at demo board.

Which one sould I use for VBUS in my design? => 1.1V (VDD) or 5V.

  • +1
    Guru 316690 points

    The VBUS pin must not be connected directly to the USB VBUS terminal.

    The TUSB9261 has a threshold of about 0.5 V to detect that it is connected to a host. Use a voltage divider; see table 2 in section 8.2.1 for recommended resistor values.