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AM3517 USB OTG VBUS valid threshold

CharlieWW
Prodigy 170 points
Other Parts Discussed in Thread: AM3517

Hi,

I have a few questions on the USB OTG VBUS pin:

  1. What is the minimum USB0_VBUS voltage that can be used with the AM3517?  The USB2.0 spec indicates 4.4V in Section 7.3.2 but, with self-powered, permanently attached hub operating off 3.3V, 3.3V is much more convenient. 
  2. If 5V is used, can the 5V be present on the AM3517 VBUS_OTG pin prior to providing AM3517 supply voltages?
  3. Is the VBUS valid threshold programmable?
  4. What is the maximum quiescent current for the USB0_VBUS pin?

Thanks,

Charlie