Hi Team,
are there any APP-Notes for EN55032 Class B filter?
Does MPM3804GG needs such filtering at the input?
I also use the switching regulator to supply audio circuits. What is the output noise of the regulator, and how should a post-ripple filter (L-C-T-P) be dimensioned?
Best Regards
Thomas
Hello,
As of now, MPS doesn’t have any specific application notes for an EMI input filter.
The typical application of the MP3804GG doesn’t need filtering at the input, however, there are no EMI specific data shown in the datasheet.
If you are interested in a module that is similar to the MPM3804GG, I would instead recommend the MPM3811, as there is a recommended input EMI Filter as shown:
It also has the following EMI radiated and conducted characteristics in the datasheet that meet the Class B EN55022 spec:
This performance is with the EMI filter as shown in the typical applications page above.
Best,
Krishan
