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ISOW7841: ISOW7841 not meeting European EMI standard?

Hans
Genius 12705 points
Part Number: ISOW7841

Hello Team,

please provide a solution to fix the 60MHz spur measured on the TI ISO7841EVM. Which common mode chokes and ferrites need to be placed? Can you provide some partnumbers, please?

See measurements below.

Thanks and Best Regards,

Hans

  • 0
    TI__Expert 6955 points

    Hans,

    TDK - ACT1210-510-2P

    TSK - ACT45B-510-2P

    Wurth - 744242330

    Above are chokes that could be effective in helping with EMI. Unfortunately the EVM does not have any footprints for a choke. One would have to make some modifications to the EVM to properly solder the choke on while not compromising EMI performance. Hopefully the customer's board has footprints available for these chokes so that they can be properly placed in the layout.

    Respectfully,

    Lucas