onductorGN1668 is a LED driver SOP-24 package manufactured by GN Semiconductor. It is designed to drive series-string LEDs from a single, low voltage power supply with LED current control via an external resistor. The output current is constant over wide input voltage and temperature ranges. The device features thermal and over-current protection and has an automatic brightness control control function that maintains a constant LED brightness even when the terminal voltage fluctuates. It is RoHS compliant and has an increased efficiency with low heat emission. The GN1668 is suitable for backlighting applications in LEDs, such as for LCD displays, automotive, and industrial lighting.