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TPS54040A　BOOT UVLO variation

Go
Genius 4165 points
Other Parts Discussed in Thread: TPS54040A, TPS54060A

Hi

Does anyone have the variation data for TPS54040A Boot UVLO threthold voltage?

Regards,

Go

  • 0
    TI__Mastermind 35115 points

    Hi Go,

    There should be some data available from when the product was developed and I'll look around for it. What will this data be used for?

    Best Regards,
    Anthony

  • 0 in reply to Anthony F
    Genius 4165 points

    Hi, Anthony

    Thank you for your comment.

    My customer'd like to know the target voltage difference between Vin and Vout

    which can avoid the behavior described in TPS54040A D/S page13

    "Low Dropout Operation and Bootstrap Voltage (BOOT)".

    Thanks

    Go

  • 0 in reply to Go
    TI__Mastermind 35115 points

    Hi Go,

    I found the data and it suggests a maximum value of 2.4V.

    The extreme occurs at -40 deg C as should be suggested by Figure 21 in the datasheet. It seems the Y axis had it's numbers reversed based on the data I looked over and other datasheets in this family. The correct curve could be found in the TPS54060A datasheet.

    Best Regards,
    Anthony