TS5USBC41: Tie FLT# output to GND to help routing?

Christopher Hansen81

Part Number: TS5USBC41

If we are not using the FLT# output to watch for faults, is it OK to tie FLT# to GND? This would allow us routing access to the ground pin much more easily rather than resorting to a filled and capped via.

over 6 years ago

0 Brian Zhou over 6 years ago

TI__Guru*** 144745 points

you can leave FLT unconnected if not used

0 Christopher Hansen81 over 6 years ago in reply to Brian Zhou

Prodigy 60 points

Thank you. I have read in other responses that it is ok to leave unconnected. My question is whether it's OK to tie FLT# to GND. That way I can connect the B3 GND pin to A4 FLT# pin with one trace to a GND via.

If I can't tie FLT# to GND, then I have to add fab processes, which I would prefer to avoid.

0 Brian Zhou over 6 years ago in reply to Christopher Hansen81

TI__Guru*** 144745 points

For FLT pin, it's better pullup to Vcc. but don't tie to GND

0 Christopher Hansen81 over 6 years ago in reply to Brian Zhou

Prodigy 60 points

Okay, we won't tie FLT# to GND. I will tie the OE# input to GND instead and share the routing that way unless you recommend otherwise. Thank you.

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TS5USBC41: Tie FLT# output to GND to help routing?