• State Resolved
  • Locked Locked
  • Replies 1 reply
  • Subscribers 62 subscribers
  • Views 103 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.

LM5160-Q1: Power dissipation calculate

Chao Fu Chen
Intellectual 920 points
Part Number: LM5160-Q1

Hi Team,

This part datasheet mentioned the Tj = Ta x (RθJC(top) x P)

and follow the link for thermal information to see this method is hard to get the real value.

So we can used the Tj = Tc x (ψJT x P)  , right ?

Or , if you have any better idea in here, please give us some feedback to learn. Thanks!

Eddie

  • 0
    TI__Mastermind 27045 points

    Hi Chao Fu,

    you can use Webench to estimate the Tj before you build the prototype board.

    If the board is ready and workable, then measure Tc, and calculate Tj with Tj = Tc x (ψJT x P), P is IC power loss, not circuit conversion loss.

     

    B R

    Andy