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  • Resolved

TPS74201: about out put discharge

Guru 20450 points

Replies: 2

Views: 273

Part Number: TPS74201

Hi,

Could you inform me of TPS74201 out put discharge function?
Can this device discharge the output?
Customer wants to know the fall time of TPS74201 after EN low.
Please tell me how to calculate the fall time.

Best Regards,
Yusuke / Japan Disty

  • Hi Yusuke-san,

    The TPS74201 does not have an active pull-down at the output. Once disabled, assuming no load, the only discharge path is via the feedback resistors. so the actual discharge will be a function of your feedback resistors and the capacitance at the output.  if a load is connected, that would only help to accelerate the discharge of the output rail.

    What is the application where they are looking for an active output discharge?

    Thank you,

    John Cummings 蔣康明
    Texas Instruments 德洲儀器
    Johncummings@ti.com

    Please click the "Resolved" link at the bottom of this post if I have answered your question.

    Thank you,

  • In reply to JCHK:

    John-san,

    Thank you for your support.
    I understand this matter.

    Application is broadcast system.
    Customer is considering a falling sequence for FPGA power.

    Best Regards,
    Yusuke / Japan Disty

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