Description The SM2082GA is a single channel LED Linear constant current driver which adopts the patented constant current control technology. The output current is adjustable through the external Rext, maximum current can reach 50mA, and the chip is with excellent constant current performance that the output current is not varied with the variation of the OUT voltage. The cost is low with simple structure and fewer peripheral components. The chip has the function of over temperature regulation. When the chip temperature reaches over temperature adjusting node, the output current is gradually reduced, which plays a role in protecting the IC and improve the reliability of system application.