SSL2103,pdf (SMPS controller I

SSL2103 is a Switched Mode Power Supply (SMPS) controller IC designed for LED
lighting applications. It is an extension of the NXP SSL2101/SSL2102 product platform,
allowing easy design of derivative applications.
When used in combination with a phase cut dimmer connected directly to a rectified
mains, it provides dimmability to the application.
In dimmer applications, integrated dedicated circuitry optimizes the dimming curve.
• SSL2101: fully integrated LED driver for lamps up to 10 W
• SSL2102: fully integrated LED driver for lamps up to 25 W
• SSL2103: gives the application designer flexibility permitting the:
– control of an external power switch to allow the IC to provide any power
– control of external bleeder transistors to provide extended dimmer interoperability
The device includes a circuit that allows start-up directly from the rectified mains voltage.