• State Resolved
  • Locked Locked
  • Replies 1 reply
  • Subscribers 64 subscribers
  • Views 205 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.

UCC23513: Active pulldown

Kuramochi Tadahiko
Guru 28715 points
Part Number: UCC23513

Hi,

I have a question related to ”Active Pulldown" of UCC23513. 

Is this function act as miller clamp to prevent self-turn-on phenomenon?

Or, should we correspond it by external circuit?

If it can prevent by Active Pulldown, is external protection unnecessary(e.g. negative voltage bias)?

Or, Is it necessary in some cases?

Best Regards,

Kuramochi

  • 0
    TI__Guru**** 189399 points

    Hi, Tadahiko-san,

    I assume you are referring to section 8.3.4.2 Active Pulldown of the data sheet?

    In that case, this is not Miller clamp functionality, rather is it used to prevent mis-operation of the power devices when the UCC23513's power supply is missing. This active pulldown insures the power device is switched off if no VCC is applied to the UCC23513.

    Let us know if you have further questions.