• State Resolved
  • Locked Locked
  • Replies 2 replies
  • Subscribers 63 subscribers
  • Views 374 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:

UCC28070: May the voltage amplifier of UCC28070 be bypassed?

UCC28070: ucc28070

andrea martin
Prodigy 20 points
Part Number: UCC28070

this violate the requirement that the VINAC divider ratio be the same as the VSENSE divider ratio

This is as per page 19 of the UCC28070 datasheet

  • 0
    TI__Mastermind 34465 points
    Hello Andrea,
    It is recommended that the divider ratio on VINAC and VSENSE be equal in order to maximise the accuracy of the current synthesizer.
    It is not a requirement that the ratios be the same. It is just a recommendation and perhaps violate is not quite the appropriate term .
    Thank you for your contribution
    Regards
    John
  • 0 in reply to John Griffin1
    Prodigy 20 points

    Thanks John for the quick response. We are planning a high power multiphase PFC with 2 UCC28070. We would like to get a variable output by changing the reference voltage of the external error amplifier. What do you think?