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UCC27624: Output when disabled

Hirotsugu Kobayashi
Mastermind 9255 points
Part Number: UCC27624

Tool/software:

Hi team,

When ENx is disabled, does OUTx get driven low?
Or is it weakly pulled down?
I'd like to pull up OUTx when disabled. I'd like to know if this is possible.

Best regards,

  • 0
    TI__Genius 12315 points

    Hey,

    Thank you for reaching out to TI with your questions regarding the UCC27624.

    When ENx is low, OUTx is low as seen by the Device Logic Table from the datasheet.

    There is not a pull down resistor internally on the output PINs. The only pull-down resistance is the Rdson of the pulldown structure which is ROL and is 0.6 Ohms.

    There is not a way to pull up the output when the driver gets disabled.

    Let me know if there are any further questions.

    Thank you,

    William Moore

  • 0 in reply to William Moore
    Mastermind 9255 points

    Hi William,

    Thank you, I understand that it is driven low when disabled.
    Are there any low-side drivers whose output becomes High-Z when disabled and can be pulled up externally?

    Best regards,

  • +1 in reply to Hirotsugu Kobayashi
    TI__Genius 12315 points

    Hey,

    We do not have any low-side drivers that become High-Z or pull high after being disabled. If there is a particular competitor device that this is targeting, please share that.

    Thank you,

    William Moore