USB-C SBU Pins short to GND

KANE SUNG

Prodigy 210 points

Other Parts Discussed in Thread: TPS65986EVM

Hello Everybody,

General question regarding the SBU-pins.

We don't need the SBU pins for alternate modes.

And we need to connect SBU pins to GND due to some reason.

Any side effect if we connect SBU pin to GND?

Best Regards,

Kane

over 8 years ago

0 Jimmy Hua over 8 years ago

TI__Guru 50120 points

Hi Kane,

If you are not planning on using the SBU pin, it is recommened to tie it to GND. This can be referenced in the TPS65986 Type-C Port Pins section of the datasheet.

Regards,

Jimmy Hua

0 Aramis P. Alvarez over 8 years ago in reply to Jimmy Hua

TI__Genius 10370 points

Hi Kane,

Make sure to add a weak pull-down resistor to Ground (1Mohm is a good value per the Type-C specs). Feel free to use the TPS65986EVM board for reference (screen shot below).

Best Regards,

Aramis P. Alvarez

Interface

Interface forum

USB-C SBU Pins short to GND