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All   >>  LED Lighting   >>   General Lighting Applications   >>   Questions
 

I need to control the power dissipated by groups of LEDs up to 600mA. As you know, when LEDs heat up, the forward voltage drop decreases resulting in reduced emission, so controlling current is not sufficient to controlling the total power emitted. Got any circuit devices for that?

Please refer to our application note AND8462/D , Tip 7: Thermal Foldback at : http://www.onsemi.com/pub_link/Collateral/AND8462.PDF\nThank you. Answered by:
ON Semiconductor
2012-07-31 14:42:16.0