TL431 calculation formula

MicrosiM

Administrator
Staff member
After some serious work with TL431 chip, I had to find the proper way to calculate the values of the resistors for any given voltage in a SMPS.

The attached formula is the result of my work.

However the formula is already found on the internet at many places, but I put it in an excel sheet for all to use it quickly

Hope it helps
 

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  • TL431_FORMULA_15062021.zip
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