TUSB8043A: Design Check

Vishal Mistry

Prodigy 130 points

Part Number: TUSB8043A

Hello Team,

We are using TUSB8043A USB HUB in our design. Our application we are using 4 port as below configuration.

USB 1 : USB TYPE C HOST

USB 2 : USB TYPE A HOST (Expansion Header)

USB 3 : USB TYPE A HOST (Expansion Header)

USB 4 : USB To Ethernet IC

Please review design and let us know if any modification is required

USB HUB_SCH_REVA_01.pdf

Thanks and Regards,

Vishal Mistry

over 1 year ago

0 Brian Zhou over 1 year ago

TI__Guru** 105055 points

1 for hub; USB_VBUS is a detection input and should only be high when an active host is connected. If this is an embedded design, but when the host is “disabled” it leaves its eceiver terminations enabled and USB_VBUS is high, the hub could enter compliance mode

0 Brian Zhou over 1 year ago in reply to Brian Zhou

TI__Guru** 105055 points

for type-C: you need to control vbus by switch in DFP mode

0 Brian Zhou over 1 year ago in reply to Brian Zhou

TI__Guru** 105055 points

for hub downstream, you need to supply 5v for vbus.

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TUSB8043A: Design Check