Other Parts Discussed in Thread: TUSB4020BI
Hi,
Customer considers to use either TUSB4041I or TUSB4020BI on their board for an appliction connecting the chip to an extension card without physical USb connector. So, they might not connect a 5V to USB_VBUS as most cases, What they plan is to connect USB_VBUS pin from a 3.3V power source. So, the questinos would be.
- What is the Vih of USB_VBUS pin for these 2 chips?
- For their case using 3.3V, how would you suggest the ratio of resistove divider implemented ont heir board?
- Is it true that the chip is not funcional at all if USB_VBUS is below this threshold?
Thanks!
Antony
