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SENSE+/- lines

Hello,

i wanted some clarification on the placement of the sense+/- lines.

I am using a PTH04T230 and the data sheet indicates the sense+ is to be placed near the load and the sense- is to be placed within 10 cm of the part. What is the reason for placing the sense- close to the module? All i can think of is for common ground designs (which i am doing), you get a mixture of currents on the GND plane which can cause insatbility in the switcher.

Regards,

Guy