• State TI Thinks Resolved
  • Locked Locked
  • Replies 1 reply
  • Answers 1 answer
  • Subscribers 41 subscribers
  • Views 547 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

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.

PMP40182: how the TL594 change PWM signals

Yuan Tan63
Expert 3280 points
Part Number: PMP40182

Hi ,

In PMP40182 , when mode changes between Buck and boost, how the TL594 change PWM signals?

thanks!

  • 0
    TI__Intellectual 1035 points

    Hi, Yuan,

    Buck Mode:

    Q3 is main FET and Q4 is the freewheel FET. the PWM duty cycle(Q3 turn on time )is increasing as output current increases.

    Boost Mode:

    Q4 is main FET and Q3 is the freewheel FET. the PWM duty cycle(Q4 turn on time )is increasing as output current increases.