TUSB4020BI: TUSB4020BI driving strength confirm

Gordon Chang1

Prodigy 10 points

Part Number: TUSB4020BI
Other Parts Discussed in Thread: TUSB4041I

Hi TI,

How about TUSB4020BI and TUSB4041I output driving strength?

Can both hub support D3 mode power saving?

over 7 years ago

0 Brian Zhou over 7 years ago

TI__Guru**** 161706 points

power saving mode U1/U2 is for USB 3.0 protocol, but will check again and get back to you tomorrow.

0 Malik Barton57 over 7 years ago

TI__Guru 64326 points

Hi Gordon,

TUSB4020BI and TUSB4041I do not take advantage of USB 3.0 power states. Suspend mode offer the most power saving while still having a upstream port connected. Could you explain more by what you mean as D3?

0 Malik Barton57 over 7 years ago in reply to Malik Barton57

TI__Guru 64326 points

Hi Gordon,

Please see this document on TUSB4020BI and TUSB4041I output driver strength.

www.ti.com/.../slla429.pdf

Is there any more support needed for this issue? If so please reply with any relevant details so that I can further assist you. For now I will be marking this thread as "TI Thinks Resolved". If you have resolved your issue, please post the solution to the original problem/post for others with similar issues.

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TUSB4020BI: TUSB4020BI driving strength confirm