Transformer W5500


why are the resistors R16 & R17 needed, when using a transformer with the W5500 Chip?

They are not necessary in other designs.

I would be glad, if someone could help me.


I think surge or extra energy can be reduced through those resistors but It doesn’t seem necessary.
Also, 82R of R6 and R7 can be replaced with 50ohm resistors.
But officially, only the recommended schematic can be guaranteed. Please understand this.
Because we can’t test all user’s schematics.

Ok, thank you.