• State TI Thinks Resolved
  • Locked Locked
  • Replies 1 reply
  • Answers 1 answer
  • Subscribers 62 subscribers
  • Views 314 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

Original question:

TPS2663: NC pins tied to GND

TPS2663: N.C Pins left open?

Hans
Genius 12865 points
Part Number: TPS2663


Hello Team,

according to DS table 6-1 the N.C pins should be left open, correct?

But the EVM schematics show some NC pins connect to ground, some to Vin and some to Vout. 

Can you confirm that these pins can also be left open? Or, if tied to ground is recommended, why?

Thank you and Best Regards, Hans

  • 0
    TI__Guru** 106861 points

    Hi Hans,

    NC pins can be connected to GND or left open or any other potential. 

    On EVM, We connected NC pins near Vin and Vout are connected to Vin and Vout to spread the copper around the Vin and Vout pins. And rest of the NC pins to GND so that the ground plane under the thermal pad can be extended on the top layer. This way it will be more effective in improving the thermal relief to the device than connecting all the pins to Vin.

    Best regards,

    Rakesh