●The SSL2103T/1 is a Switched Mode Power Supply (SMPS) Controller IC that operates in combination with a phase cut dimmer directly from the rectified mains. It is designed to drive LED devices. The device includes a circuit to allow direct start-up from the rectified mains voltage. It gives the application designer flexibility to - use an external power switch to allow the IC to provide any power and to use an external bleeder transistors to provide extended dimmer interoperability.
● Easy migration to existing lighting control infrastructure
● Supports most available dimming solutions
● Optimized efficiency with valley switching managed by a built-in circuitry
● Demagnetization detection
● Over-temperature protection
● Short-winding (SWP) and overcurrent protection (OCP)
● Internal VCC generation allowing start-up from the rectified mains voltage
● Natural dimming curve by logarithmic correction, down to 1%
● Suitable for flyback and buck applications
