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TI Home » TI E2E Community » Support Forums » Interface » /etc... Interface » ESD/EMI Forum » TPD12S521 LV_SUPPLY(# 2pin) must need of external 10K pull-up?
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TPD12S521 LV_SUPPLY(# 2pin) must need of external 10K pull-up?

This question is answered
jangsoo lee
Posted by jangsoo lee
on Jan 18 2012 19:25 PM
Prodigy60 points

TPD12S521 LV_SUPPLY(# 2pin) must need of external 10K pull-up?

Direct replace for CM2020  without PCB modification.

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  • Vivek Shankar
    Posted by Vivek Shankar
    on Feb 06 2012 08:28 AM
    Verified Answer
    Verified by jangsoo lee
    Intellectual2130 points

    Jangsoo Lee

     I am looking into this and should have a response to you by tomorrow the latest.

    Vivek

    Vivek Shankar
    Applications Engineer
    Integrated Protection Devices
    Texas Instruments Inc.
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  • Vivek Shankar
    Posted by Vivek Shankar
    on Feb 07 2012 15:28 PM
    Verified Answer
    Verified by jangsoo lee
    Intellectual2130 points

    Jangsoo Lee,

    The LV_SUPPLY drives the gate of the FET internally (as shown in the data-sheet). Its is recommended to use a resistor to limit the current in-case of a transient in your supply line. however, if your board design does not accommodate it, you can drive the gate without the resistor. the part will function normally.

    Vivek

    Vivek Shankar
    Applications Engineer
    Integrated Protection Devices
    Texas Instruments Inc.
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  • jangsoo lee
    Posted by jangsoo lee
    on Feb 09 2012 01:29 AM
    Verified Answer
    Verified by jangsoo lee
    Prodigy60 points

    Dear Vivek

    Thank you for kindly reply.

    and, The customer has requested official documents.

    Can you send me an official document?

     

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  • Vivek Shankar
    Posted by Vivek Shankar
    on Feb 15 2012 09:01 AM
    Verified Answer
    Verified by jangsoo lee
    Intellectual2130 points

    Jangsoo Lee,

    This is already shown in the datasheet. Please have a look at Page 2 -- Electrical Schematic

    Thanks
    Vivek

     

    Vivek Shankar
    Applications Engineer
    Integrated Protection Devices
    Texas Instruments Inc.
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