TIDA-050047: TPS25750 pin 5 connected to ground on layout but not schematic

TonyMotegi

Part Number: TIDA-050047

The schematic shows U4 pin 5 unconnected, but the layout has it connected to ground. This creates a DRC. Could you advise whether it should actually be connected to ground or not?

Thanks

over 4 years ago

0 Chuck Branch over 4 years ago

TI__Mastermind 32791 points

You can float the unused GPIO pins instead of connecting them to ground. They will be tolerant to this condition.

+1 TonyMotegi over 4 years ago

Prodigy 140 points

But I was wondering the reason for the connection. Does the firmware check for this input to be low? Does it matter if it's left connected to ground?

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TIDA-050047: TPS25750 pin 5 connected to ground on layout but not schematic