• State TI Thinks Resolved
  • Locked Locked
  • Replies 1 reply
  • Answers 1 answer
  • Subscribers 63 subscribers
  • Views 574 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.

UCC28500: The PGND & SGND of UCC28500

Ginger Lin
Prodigy 100 points
Part Number: UCC28500

Hello TI members,

What's the different between PGND & SGND of UCC28500? Is there any connection between PGND & SGND inside the IC?

For example: pin 4(OVP) of UCC28500, what reference ground should be connected: PGND or SGND? 

Should I connect PGND and SGND outside the IC on the PCB layout ?

thank you very much.

Ginger Lin

  • 0
    TI__Mastermind 31580 points
    Hi Ginger,

    The PGND is the ground for the driver output and it will carry the gate drive pulse currents these currents should not be carried in a common ground trace shared with any of the control signals, hence the separate pin.

    The PGNG and SGND should be connected outside the IC at a star point.

    All the control level signals like OVP, VAO, VSENSE etc should be referenced to SGND.

    Hope this helps

    Regards

    Peter