Method for limiting current and circuit therefor

A method for limiting current in a circuit without changing the number of input/output pins, comprising:

• generating a first voltage across a first input pin and a second input pin;
• comparing a second voltage with the first voltage, the second voltage across the first input pin and a third input pin;
• and
• setting a third voltage at the first input pin in response to the comparison between the first voltage and the second voltage.

A current limit circuit having a plurality of pins, comprising:

• a measurement circuit having an input and an output;
• a comparator having first and second inputs and at least one output, wherein the output of the measurement circuit is coupled to the first input of the comparator;
• a first driver having an input coupled to the at least one output of the comparator and an output connected to a first pin of the plurality of pins;
• a current source coupled between a second pin and the first pin of the plurality of pins;
• and
• a first resistor coupled between the first pin and a third pin of the plurality of pins.