TPS25810: TPS25810 use to enable TPS2546

Kagen Aeby

Part Number: TPS25810
Other Parts Discussed in Thread: TPS2546

I am designing a battery powered device with USBC hub. I referenced the "TPS25810 Charging Port Over USB Type-C" application note for my schematic, which has the TPS2546 enabling the TPS25810 by connecting the EN pin to OUT. How would I go about switching the control device to the TPS25810? The Iu of the TPS2546 is significantly greater than the 25810. Is the implementation in the attached schematic correct?

over 2 years ago

0 Conner Gillette over 2 years ago

TI__Genius 13880 points

Good Afternoon Kagen,

I will review your inquiry and provide feedback by Friday, EOB.

Kind regards,

Conner Gillette

0 Conner Gillette over 2 years ago in reply to Conner Gillette

TI__Genius 13880 points

There is no output pin from the TPS25810 that would trigger upon a plug event, which would be needed for switching on/off a FET connected to the IN pin of the TPS2546. This is why the TPS2546 is enabling the TPS25810.

I see no issues with your schematic, other than the way it is currently set, both the TPS2546 and the TPS25810 are both always on.

Kind regards,

Conner Gillette

Power management

Power management forum

TPS25810: TPS25810 use to enable TPS2546