Linux/TUSB8041: About USB_VBUS

wolver wang

Part Number: TUSB8041

Tool/software: Linux

Dear Sir

Could you tell me why need R1=90.9K_1% & R2=10K_1%......

0 Jorge Llamas (SWAT) over 7 years ago

That is a reference required by the internal comparator to sense an upstream connection.

Regards,
Jorge

0 wolver wang over 7 years ago in reply to Jorge Llamas (SWAT)

Dear Jorge

I want to kown the Internal reference voltage，how much?

0 JMMN over 7 years ago in reply to wolver wang

Ideally, USB_VBUS would be around 500 mV when VBUS is asserted. Vih(min) = 400 mV, Vih(max)=1.155V.

Regards,
JMMN

0 wolver wang over 7 years ago in reply to JMMN

Dear JMMN

3QY！

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