• State
  • Locked Locked
  • Replies 1 reply
  • Subscribers 63 subscribers
  • Views 524 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.

LM3481-Q1: Behavior after releasing the OVP state of LM3481-Q1

Tomohiro Nagasawa
Expert 1710 points
Part Number: LM3481-Q1
Other Parts Discussed in Thread: LM3481

Dear support team

Could you teach the behavior after releasing the OVP of the LM3481-Q1?

How long does it take for a normal switching cycle?

Regards

Tomohiro Nagasawa

  • 0
    TI__Guru* 78070 points
    It depends on how long your output voltage can recover to below the OVP threshold. I quote the datasheet words below:

    The LM3481 will begin switching again when the feedback voltage reaches VFB + (VOVP -VOVP(HYS)).

    If you have a large output capacitor to hold the voltage, the voltage may decay slowly and it takes longer time for the IC to re-start switching.

    Hope this clarifies. If this answers your question, please reply by clicking "This resolved my issue" button.

    Best Regards,
    Youhao Xi, System and Applications Engineering, APP-BMC-BCS, TI