• State TI Thinks Resolved
  • Locked Locked
  • Replies 1 reply
  • Answers 1 answer
  • Subscribers 63 subscribers
  • Views 305 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.

UCD9248: Current sense for no-used channel

Wu JW
Intellectual 2935 points
Part Number: UCD9248

Hi, Team,

My customer didn't use the Ch1-B, and he let the DPWM-1B, SRE-1B floating, FLT-1B grounded. Connect the voltage signal to CS-1B, could he get the value of the voltage with the UCD9248?

  • 0
    TI__Intellectual 925 points

    The Current Sense (CS) pins on UCD9248 receive a small voltage that is proportional to the amount of current going through the power stage. They cannot be used for measuring output voltage.
    If they are not using Ch1-B, they should ground CS-1B.

    The output voltage of the power stage being controlled by CH-1A is measured by the EAp1 (V+) and EAn1 (V-) pins.