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UCC27532: Replacement between UCC27532 and UCC27531

Liu Meili
Prodigy 30 points
Part Number: UCC27532
Other Parts Discussed in Thread: UCC27531,

Hi, Can we use UCC27532 (SOT-23-6) as the Pin to pin replacement for UCC27531(SOT-23-6)? what is the difference between them? Thank you.

  • 0
    TI__Expert 4070 points

    Hi Liu,

    Thanks for reaching out!

    ------

    The difference between these parts is the input structure threshold voltages.

    The UCC27531 has the following input threshold voltages:

    The UCC27532 has an input threshold voltage that is dependent on the VDD voltage.

    So, it is pin to pin, but is likely not compatible with the signals in your system.

    To use the UCC27532, you would likely need to have a level shifter into the input to switch the input signal from GND to VDD.

    --------

    I hope this helps answer your question, thanks!

    Aaron Grgurich