SSL2101 Datasheet, PDF(1/22 Page) NXP Semiconductors – SMPS IC for dimmable LED lighting

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SSL2101 Datasheet, PDF (1/22 Pages) NXP Semiconductors – SMPS IC for dimmable LED lighting

SSL2101

SMPS IC for dimmable LED lighting

Rev. 04 â 28 August 2009

Product data sheet

1. General description

The SSL2101 is a Switched Mode Power Supply (SMPS) controller IC that operates in

combination with a phase cut dimmer directly from rectiï¬ed mains. It is designed to drive

LED devices. The device includes a high-voltage power switch and a circuit to allow

start-up directly from the rectiï¬ed mains voltage. Furthermore the device includes

high-voltage circuitry to supply the phase cut dimmer.

For dimmer applications, integrated dedicated circuitry optimizes the dimming curve.

2. Features

I Easy migration to existing lighting control infrastructure, triac and transistor dimmers

I Supports majority of available dimming solutions

I Valley switching efï¬ciency is optimized by built-in dedicated circuitry

I Built-in demagnetization detection

I The IC has built-in OverTemperature Protection (OTP)

I Short-Winding Protection (SWP) and OverCurrent Protection (OCP)

I The IC has internal VCC generation that allows start-up from rectiï¬ed mains voltage

I Natural dimming curve by logarithmic correction

3. Applications

The SSL2101 is suitable for different power requirements, these include:

I Retro-ï¬t lamps, e.g. GU10, up to a maximum of 10 W

I LED modules, separate power supplies, e.g. LED spots, down-lights, up to a maximum

of 15 W

I LED strings, e.g. retail display, up to a maximum of 15 W

I Mains isolated LED drivers up to 10 W to 15 W (ï¬yback topology)

I Non mains isolate LED drivers (buck topology) with a maximum peak current of

900 mA and continuous LED current below 450 mA

I LED lamps 1 W to 10 W (ï¬yback) or 450 mA (buck)

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