Because of the Thanksgiving holiday in the U.S., TI E2E™ design support forum responses may be delayed from November 25 through December 2. Thank you for your patience.

  • State TI Thinks Resolved
  • Locked Locked
  • Replies 3 replies
  • Answers 2 answers
  • Subscribers 65 subscribers
  • Views 659 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

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.

What is the Pros and cons of Capacitive isolation over magnetic one?

Fashid Rahman
Prodigy 20 points
Other Parts Discussed in Thread: ISO5852S

What is the Pros and cons of Capacitive isolation over magnetic one?

  • 0
    TI__Genius 10855 points

    Hi,

    The biggest advantage of TI's capacitive digital isolators is its very high working voltage up to 2000 Vrms. Working voltage is the high voltage withstand capability of the isolator that it can sustain for its lifetime (>20 years). TI's capacitive isolators use SiO2 as insulation material. Most magnetic isolators use Polyimide as an insulation material and its working voltage is typically limited to 600 Vrms.

    More details about TI's isolation technology can be seen at:

  • 0 in reply to Saleem Marwat
    Prodigy 20 points

    Hello sir,

    Thank you for your nice reply.

    I have some more concern on this.

    1. Which one is more reliable Magnetic or Capacitive? 

    2. As in the sense of EMI which is better (Magnetic or Capacitive)?

    We are using ISO5852s  gate driver IC by replacing magnetic isolation of 1500V.

  • 0 in reply to Fashid Rahman
    TI__Genius 13650 points

    Hi Fashid,

    Welcome to E2E!

    In terms of capacitive isolation when compared to other isolation technologies, the ISO5852S along with the other isolated drivers in our product line offer higher isolation ratings, and higher common mode transient immunity, shorter propagation delay, low EM emissions, and longer lifetime.

    Continue commenting on this thread if you have further questions on the ISO5852S, or start a new thread if discussing a new topic.

    Best regards,

    Andy Robles