• State
  • Locked Locked
  • Replies 1 reply
  • Subscribers 63 subscribers
  • Views 338 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

LM5069 surviving 1100V surges

SimonF
Expert 3370 points
Other Parts Discussed in Thread: LM5069

Hi Team,

is there a way to use the LM5069 to protect against 1100V surges? Do we maybe have a reference design for that? Is the LM5069 even usable for such high voltages?

Thank you for your time!


Best Regards

SF

  • 0
    TI__Genius 12621 points
    Hi Simon,

    Is there a specific pulse standard they are looking to pass?

    A couple of key questions would be:

    1. What is the pulse waveform (a diagram would be ideal, otherwise the rise time, decay time, overall duration)?

    2. What generator source impedance are they looking at? For example, a 2ohm impedance would mean up to 550A injected, versus a 200ohm impedance would be just 5.5A.

    If the source impedance is high, then just a TVS diode on the input may be sufficient. For example a hefty TVS diode such as 5.0SMDJ33A can protect up to 5kW of brief transient power.

    Thanks!
    Alex