• State Resolved
  • Locked Locked
  • Replies 5 replies
  • Subscribers 62 subscribers
  • Views 183 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.

TPS23756: ASking for the MOS spec review

SHH
Mastermind 30756 points
Part Number: TPS23756

Hi team,

Cusotmer design TPS23756PWPR  for 54V to 12V application.

Customer would llike to evaluate the 2nd MOS source.

Would you please review the 2nd MOS spec and provide comment?

change from 357MN763100000000D to 357G763N10022900HF.

Here is schematic and MOS spec link.

https://txn.box.com/s/go3t6bz7klzqw2fdi3kalc0yrb438z9h

password: "ti"

BR,

SHH

  • +1
    TI__Mastermind 21320 points

    Hello, 

    I would not recommend either since the Vds is not 150V. 

    Otherwise the transition is fine. the second FET has a lower current rating but is more efficient and faster. The higher current rating is not needed so it's fine. But I strongly suggest a 150V FET. 

    If this post answers your question, please indicate so by marking this thread as resolved. Thank you.

     

    Regards, 

     

    Michael P.

    Applications Engineer

    Texas Instruments 

  • 0 in reply to Michael Pahl
    TI__Mastermind 30756 points

    Hi Michael,

    Customer feedback that TI's EVM Vds is 100V. would you please kindly let me know why we recommend 150Vds here?

    cusotmer also provide alternative MOS, would you please help check it is ok or not? Thanks for help!

    MOS.zip

    BR,

    SHH

  • +1 in reply to SHH
    TI__Mastermind 21320 points

    Hello, 

    150V VDS rating gives more margin for overvoltage. The estimated nominal voltage max is ~65V. This does not account for overshoot. If we add 15V for overshoot, that is already 80V. So it depends on how much margin the customer wants to have. Product line always suggests 150V because we never see issue at this voltage. 

    If the customer wants to choose something lower that is their choice. 

    Otherwise the transition is fine. the second FET has a lower current rating but is more efficient and faster. The higher current rating is not needed so it's fine.

     

    If this post answers your question, please indicate so by marking this thread as resolved. Thank you.

     

    Regards, 

     

    Michael P.

    Applications Engineer

    Texas Instruments 

  • 0 in reply to Michael Pahl
    TI__Mastermind 30756 points

    Hi Michael,

    thanks for comment.

    Would you please review the attached Vds 150 MOS and provide your comment? thanks a lot!

    BR,

    SHH

  • +1 in reply to SHH
    TI__Mastermind 21320 points

    This FET is fine to use. 

    If this post answers your question, please indicate so by marking this thread as resolved. Thank you.

     

    Regards, 

     

    Michael P.

    Applications Engineer

    Texas Instruments