ESD protection for embedded applications

Discussion in 'Analog & Mixed-Signal Design' started by aneesh.msply, Sep 23, 2016.

  1. aneesh.msply

    Thread Starter New Member

    Sep 19, 2016
    Hi all,

    I would like to know how to decide which type of ESD protection i should go with like TVS diode or MOV , varistor etc .

    How do we decide ESD parameters like clamping voltage for my application
  2. kubeek

    AAC Fanatic!

    Sep 20, 2005
    Generally, MOVs are less precise but can withstand large peak energy pulses, while TVSs are faster but cannot accept such a large energy. It really depends on what kind of interface you are protecting, whether it is a power supply or data line, and what kind of ESD standards do you need to pass.
  3. aneesh.msply

    Thread Starter New Member

    Sep 19, 2016
    Ok Thanks, Our product comes under IoT category and meant for USA .

    So Can you please advice me what kind of ESD standard generally needed ?
    Thanks in advance

  4. ian field

    AAC Fanatic!

    Oct 27, 2012
    If you need to comply with an ESD standard - you should know what it is, or at least where to look it up.

    Most of the time its sufficient to clamp any exposed IO lines to the supply rails with protection devices.

    MOV and TVS devices are normally the first line of defense in harsh environments.

    Littlefuse make more than just fuses - they do a whole range of protection devices - their appnotes are an education.