TPS2546: DCP Compliance Failure

Jim CHEN

Expert 4795 points

Part Number: TPS2546

Dear Team,

My customer has one docking project that faced BC1.2 compliance failure.

May I get your help to review these failure and provide some advice?

Thank you.

Regards,

Jim

H1P2_FAIL_BC1.2.zip

over 4 years ago

0 Emma Hoying over 4 years ago

TI__Genius 9630 points

Hi Jim,

I am unable to open the file type you have sent. Can you tell me what failed and what mode you were in?

Thanks,

Emma

0 Jim CHEN over 4 years ago in reply to Emma Hoying

TI__Expert 4795 points

Hi Emma,

I convert it into .txt file. The failure in DCP testing are as below.

https://e2e.ti.com/cfs-file/__key/communityserver-discussions-components-files/196/H1P2_5F00_FAIL.7z

Please help to take a look as soon as possible.

Regards,

Jim

0 Emma Hoying over 4 years ago in reply to Jim CHEN

TI__Genius 9630 points

Hi Jim,

Was it BC1.2 DCP or was it DCP auto? What were the CTL/ILIM_SEL pin settings during testing?

DCP_auto is not a BC1.2 compliant mode, which is why I ask.

Thanks,

Emma

0 Jim CHEN over 4 years ago in reply to Emma Hoying

TI__Expert 4795 points

Hi Emma,

Thanks for the information.

So if the customer would like to pass BC1.2 DCP test, they should use pure DCP mode(DCP_Shorted) in the datasheet, am I correct?

Thank you.

Regards,

Jim

0 Emma Hoying over 4 years ago in reply to Jim CHEN

TI__Genius 9630 points

Hi Jim,

Allow me to confirm with the team and get back to you.

Thanks,

Emma

0 Emma Hoying over 4 years ago in reply to Emma Hoying

TI__Genius 9630 points

Hi Jim,

Yes DCP only should be fine.

Thanks,

Emma

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TPS2546: DCP Compliance Failure