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LM25149-Q1: Does LM25149 need an external EMI filter also with its in-built EMI filter?

Abhishek Dalal
Prodigy 80 points
Part Number: LM25149-Q1
Other Parts Discussed in Thread: LM25149

Tool/software:

LM25149 datasheet says external differential mode input filter size reduces by 50%. What it means... external EMI filter is needed?

  • +1
    TI__Mastermind 35190 points

    Hello, often, the targeted designs for this device implement a differential EMI filter in series with input of the device for CE compliance. The device's integrated active EMI filter would reduce the size of the optional, external EMI filter for a design.