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ISO7141CC Layout

Shu-Cheng LIN
Guru 11785 points

Other Parts Discussed in Thread: ISO7141CC

Hi Sirs,

Sorry to bother you.

At ISO7141CC datasheet, the figure 25 " Recommended Layer Stack "

If we use on isolation 2.5KV
What is the red block layout suggestion range

Thanks for your reply.

  • 0
    TI__Intellectual 2200 points

    Hi Shu-Cheng,

    The spacing depends on working voltage as well as the temporary over voltage and surge voltage. It also depends on the material group of the laminate material used in the PCB. Please refer to the below document for a discussion on these interdependencies for motor drives. Depending on the final product, end application safety standards dictate these requirements.

    www.ti.com/.../slyy080.pdf

    For 2.5 kV isolation, and assuming your working voltage is low ( 200 - 300 Vs), a spacing of 4.0 mm should be enough.

    Rgds,

    Anant