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TI Home » TI E2E Community » Support Forums » Power Management » Sequencers » Sequencers Forum » TL7712, TL77* RESET pin
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TL7712, TL77* RESET pin

TL7712, TL77* RESET pin

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Andrew Mak
Posted by Andrew Mak
on May 28 2010 10:15 AM
Prodigy30 points

Hi,

I am looking at the datasheet of TL7712A.

On page 3's timing diagram, is the "RESET" referred to pin 6 or pin 5?

 

Thanks a lot!

 

Regards,

Andrew

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  • Chris Glaser
    Posted by Chris Glaser
    on May 28 2010 10:24 AM
    Verified Answer
    Verified by Chris Glaser
    Guru59185 points

    It should be RESET bar (pin 5).  When the supply or sense lines are low (out of spec), the RESET outputs go active, which is low for RESET bar and high for RESET.

    If you would like a newer SVS, look at the TPS3808 family.

    TPS3808 tl7712
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  • Andrew Mak
    Posted by Andrew Mak
    on May 28 2010 10:29 AM
    Prodigy30 points

    Hi Chris,

    It seems that TPS3808 works in 5V environment, while TL77* could work in 12V. Am I correct?

     

    BTW, what is /RESIN being used for in TL77*?

     

    Thanks!

     

    Regards,

    Andrew

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  • Chris Glaser
    Posted by Chris Glaser
    on May 28 2010 10:44 AM
    Guru59185 points

    Yes, the TL77 family can run up to 18V, whereas the TPS3808 is a 5V part.

    RESIN bar is a reset input.  Pulling it low immediately asserts RESET bar and RESET.  It is basically a master reset into the IC.

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