• State
  • Locked Locked
  • Replies 1 reply
  • Subscribers 62 subscribers
  • Views 103 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: DR PIN

JINSEONG KIM
Prodigy 10 points
Part Number: LM3481

While I am using LM3481, the DR PIN is irregularly different.

The circuit diagram has a Q3 gate resistance of 40 ohms, but the irregular waveform remains the same with 0 ohms.

Please tell me what this cause is and how it can come out regularly.

I'm attaching a circuit diagram.

  • 0
    TI__Genius 15985 points

    Hello,

    Thanks for reaching out. Can you please share more information like scopeshots of the DR Pin irregularity, input voltage, output voltage and output current?

    What is the reason for feeding back over the COMP pin and not the FB? We are looking forward for your response.

    Best regards,

    Moritz