TPS55330 DNU pins not connected.

Ivor Kruger1

I left the DNU pins unconnected although the datasheet explicitly indicates them to be wired. Will the chip function like this?

Idiot Ivor

over 9 years ago

0 Anthony F over 9 years ago

TI__Mastermind 35115 points

The chip should function normally. One of the NC pins is wired to an internal circuit. This circuit is disabled so no issue is expected however it is best to short this to ground in the future to minimize risk.

0 Ivor Kruger1 over 9 years ago in reply to Anthony F

Intellectual 410 points

Wow, thanks for the quick response. Knowing this, I will fire the regulator up and hope for the best. Production boards will have those pins connected to ground.

Power management

Power management forum

TPS55330 DNU pins not connected.