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UCC5320: Use UCC5390E in place of UCC5320E?

AnBer
Mastermind 28880 points
Part Number: UCC5320
Other Parts Discussed in Thread: UCC5390-Q1, UCC5390,

Team,

-Assuming that customer is using UCC5320ECD in an existing design:

-Can it be replaced directly by UCC5390-Q1/UCC5390?
  UCC5390-Q1 vs UCC5390 vs UCC5320
or are some test still neeed?

-Are there some additional P2P dropped-in options to use instead of UCC5320ECD?

-Can for example UCC5320SCD by used in place of UCC5320ECD? What would be the PCB changes required to support this?

Thanks in advance,

A.

  • +1
    TI__Guru**** 189399 points

    Hi, AnBer,

    Nice to hear from you!

    UCC5320ECD is a 2.4A driver

    UCC5390ECD (-Q1) is a 10A driver

    So, they are pin-compatible, but not drop-in compatible. You will need to increase the gate drive resistor to avoid switching the power device too quickly. This app note discusses how to do this:

    https://www.ti.com/lit/an/slla385a/slla385a.pdf

    The -Q1 variant is functionally-equivalent, so you can use either the commercial or automotive version of the '5390ECD.

    Let me know if you have further questions, otherwise, please press the Green button for me!

    Best regards,

    Don

  • 0 in reply to Don Dapkus
    TI__Mastermind 28880 points

    Hi Don,

    Thanks, I pressed Green already.


    Still one more questio, since UCC5320SCD has a better availability:


    Is there a way to use UCC5320SCD in place of a UCC5320ECD (in an existing proven design) provided you can implement some slight PCB changes around the gate driver (as pinout is slightly different)?
    Does it make sense and what would be the PCB changes required to support this?

    Thanks!

    A.

  • +1 in reply to AnBer
    TI__Guru**** 189399 points

    Hi, AnBer,

    Shoot! I replied early this morning, but I guess I forgot to press the Reply button. Odd.

    Anyway, that is kinda possible, but you need to change a couple of the traces around on the PCB. It may be kind of a major change, depending on the customer's PCB layout.

    Can you get me their schematic and PCB layout and I can depict how to change the PCB to fit the S version.  Section 3.3 Signal Connections of the EVM Users Guide, shows how we did this - we designed one EVM to fit all three versions.

    Best regards,

    Don