1. General description
The SSL2102 is a Switched Mode Power Supply (SMPS) driver IC that operates in
combination with a phase cut dimmer directly from rectified mains. It is designed to drive
LED devices. The device includes a high-voltage power switch, a circuit to allow direct
start-up from the rectified mains voltage and a high-voltage circuitry to supply the phase
cut dimmer.
For dimmer applications, an 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 to:
– Use an external power switch to allow the IC to provide any power
– Use external bleeder transistors to provide extended dimmer interoperability
2. Features and benefits
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
OverTemperature Protection (OTP)
Short-Winding Protection (SWP) and Over Current Protection (OCP)
Internal V
CC
generation allowing start-up from the rectified mains voltage
Natural dimming curve by logarithmic correction, down to 1 %
Limited external components required because of the high integration level
Thermal enhanced SO20 wide body package
Suitable for flyback and buck applications
3. Applications
SSL applications below 25 W
SSL retro-fit lamps (for example: GU10, E27)
LED modules such as LED spots and down-lights
LED strings suitable for retail displays, etc.
SSL2102
Dimmable Greenchip driver for LED lighting
Rev. 1.1 — 2 December 2011 Product data sheet
