This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

LM76202-Q1: power limiting setup

Part Number: LM76202-Q1

Hi team,

I have a question about how to do power limiting with LM76202-Q1.

For example I need to limit input power at < 9W . The thing is that the input voltage can vary between 40V to 60V.  I took 9W and 40V so I have a maximum input current 225mA, I can limit this current by connecting a resistor to ILIM pin.

But the problem is that when input voltage goes higher for example up to 60V, the input power may exceed 9W, which is not acceptable. 

I'm now thinking by using a variable resistor connect to ILIM pin I can do variable current limit according to different input voltage, but the problem becomes how to change the resistance. 

How do you suggest on doing this? Thank you very much.

George