• State TI Thinks Resolved
  • Locked Locked
  • Replies 3 replies
  • Answers 1 answer
  • Subscribers 14 subscribers
  • Views 455 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.

SN6505A: SN6505A's efficiency is 3% lower when temperature is +25 degrees Celsius compared to -40 degrees Celsius and +85 degrees Celsius.

Mike Peng
Expert 1060 points
Part Number: SN6505A
Other Parts Discussed in Thread: SN6505B, , SN6501

SN6505A's efficiency is 3% or lower when temperature is +25 degrees Celsius compared to -40 degrees Celsius and +85 degrees Celsius. SN6505B shows the same features in the same conditions.

  • 0
    TI__Genius 17100 points

    Hi Mike,

    Thank you for posting to E2E! Efficiency in SN6501 and SN6505 systems is typically defined by the transformer. Have you conducted these measurements with different transformer part numbers?


    Thank you,
    Manuel Chavez

  • 0 in reply to Manuel Chavez
    TI__Genius 17100 points

    Hi Mike,

    Hopefully all is well. I've taken efficiency measurements of the SN6505A EVM at -40dC, +25dC, and +85dC.As shown below, efficiency at +25dC is highest overall, so behavior in the original post might be system-specific.



    Which problems is the change in efficiency causing? Under which conditions? If possible, please feel free to share a BOM or schematic for component-specific analysis.


    Best,
    Manuel Chavez

  • 0 in reply to Manuel Chavez
    TI__Genius 17100 points

    Hi Mike,

    Please let me know if there is additional information I can provide. Due to inactivity, this thread will be closed now, but you may reply or create a new thread using the red and yellow buttons in the top-right corner of this window.


    Thank you for posting to E2E,
    Manuel Chavez