TPS25221: Supplying power from device to host case

Oba

Genius 15750 points

Part Number: TPS25221
Other Parts Discussed in Thread: TPD3S044,

Hello,

This is the same case as below.

https://e2e.ti.com/support/interface/usb/f/1008/t/716574

I still think how to realize this system.

I’m thinking to use a standard ACA case withTPS25221(or TPD3S044) as below figure.

Does this work?

Regards,

Oba

over 5 years ago

0 Bob Ma over 5 years ago

TI__Expert 8980 points

Hi, Oba,

TPS25221 can be used as charger switch in this ACA case. I am not very familiar with ACA control logic, please refer to BC1.2 spec.

Regards,

Bob

0 Oba over 5 years ago in reply to Bob Ma

TI__Genius 15750 points

Hello Bob,

Thanks for your reply. I'm now studying BC1.2 specification.
Anyway can't TPD3S044 be used for this purpose?

Regards,
Oba

0 Bob Ma over 5 years ago in reply to Oba

TI__Expert 8980 points

Hi, Oba,

I think TPD3S044 can be used for this purpose, it's also a current limit switch.
However, I'm not familiar with this part, so I suggest you to open a new thread about TPD3S044 to double confirm, the thread will be assigned to engineer who is familiar with it.

Regards,
Bob

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TPS25221: Supplying power from device to host case