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  • Forum Post: Can a TPS3809K33 circuit be modified to allow for a user defined threshold voltage?

    Jason Work
    Is this an acceptable use of the TPS3809K33 in order to set the threshold voltage to 3.15 V?
    on May 29, 2012

  • Forum Post: RE: Can a TPS3809K33 circuit be modified to allow for a user defined threshold voltage?

    Darwin Fernandez
    Hi Jason, Yes, you can use this configuration. However, the rule of thumb for this application is that the current through the resistor divider must be at least 100 times more than the current into VDD which is IDD=25uA to be conservative. So the divider current should be at least 2.5mA. The way the...
    on May 29, 2012

  • Forum Post: RE: TPS3808G09

    prashanth sujir
    hi.. i am planning to use TPS3808 series supervisors.. my doubts regarding it are : 1> what if i try to supervise voltage rails above the threshold voltage For example : 3.3v rail connected directly to the sense pin of a "TPS3808g09 designed for 0.9V" 2> what if i try and use a voltage...
    on Jun 6, 2012

  • Forum Post: tps3808-ep adjustable

    Calum Mackinnon
    Hi, My application requires a -55C part. I have a 5v rail and I need to monitor a 1.2V rail, the TPS3808G01MDBVTEP looks like a good part - if you have other alternatives feel free to offer them The datasheet seems a little misleading. Looks like I can use R1 and R2 to divide the 1.2v rail I need...
    on Oct 30, 2012

  • Forum Post: RE: tps3808-ep adjustable

    Darwin Fernandez
    Hi Calum, The TPS3808 is a great fit for your application! To clarify, VDD is NOT programmable; you must operate within 1.7V-6.5V for the device to operate. You can use the 5V rail for VDD. Looking at the product page, the ICs that are active are the adjustable (-01) version and the fixed 3.3V (-33...
    on Oct 30, 2012

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