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LM74720-Q1: Application of LM74720-Q1 with 24V Supply

Matt Calvo
Genius 14755 points
Part Number: LM74720-Q1

Tool/software:

Hey Power Switches Team,

I have a customer evaluating the LM74720-Q1 for a new project and we noticed on the datasheet that the typical application (Section 9.2) and all the electrical characteristics (Section 6.5) are specific to a supply of 12V. My customer has a 24V supply voltage so can you please help to comment on how the typical application and electrical characteristics would change with this higher supply? Is there additional information available, or that can be shared offline, for this device operating with a 24V supply?

-Matt

  • 0
    TI__Mastermind 49205 points

    Hi Matt,

    The controller can be used for 24V as well. Controller is rated for +65V and -60V which enough to tackle any kind of automotive pulse.

    Regards,

    Shiven Dhir

  • 0 in reply to Shiven Dhir
    TI__Genius 14755 points

    Hi Shiven,

    Thanks for the reply! We understand that the controller can support up to 65V supply; our main question is in regards to the all the Electrical Characteristic specs in Section 6.5. This section explicitly calls out that all specs are specific to a 12V supply so would you also expect the MIN, MAX, and TYP specs and overall performance to be the same at 24V supply? What changes, if any, can the customer expect at 24V versus 12V supply?

    -Matt

  • 0 in reply to Matt Calvo
    TI__Mastermind 49205 points

    Hi Matt,

    All the electrical characteristics still hold true even if VIN is 24V. Min and Max are defined for entire working range.

    Regards,

    Shiven Dhir

  • 0 in reply to Shiven Dhir
    TI__Genius 14755 points

    Ah yes that's a very good point, thanks for the clarification Shiven!

    I now see the spec table clearly stating that the TYP values are at a 12V supply so it makes sense that the MIN and MAX values would be across the working range; my apologies for the confusion! 

    -Matt