• State Resolved
  • Locked Locked
  • Replies 1 reply
  • Subscribers 63 subscribers
  • Views 51 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: R30 and R36 connection in the Reference Design of TIDA-01592

Mark Liang
Prodigy 40 points
Part Number: LM3481
Other Parts Discussed in Thread: TIDA-01592

Tool/software:

Hello,

On Page 11 of TIDA-01592 (TIDUDS2-February 2018), R30 and R36 were covered by the red cross.  What was the reason(s) for not connecting R30, C22 and R36, C31?

Best,

Mark

  • 0
    TI__Mastermind 30030 points

    Hi Mark,

    Thanks for using the e2e forum.
    A red cross in the schematic means the component is not populated.
    By removing R30 and R36, you 'disable' the snubber circuit. This increases efficiency, but also increases potential switch node overshoots and ringing.
    Depending on design requirements, the snubber can be added or removed.

    There were more questions on this snubber in the past.
    Feel free to check out this thread:
    LM3481EVAL: R30 and R36 in Ref Design: TIDA-01352

    Best regards,
    Niklas