SSL5511T Greenchip controller for LED lighting with DIM pin Rev. 2 30 June 2014 Product data sheet 1. General description The SSL5511T is an offline dimmable controller IC, intended to drive dimmable LEDs in general lighting applications, like remote-controlled luminaires and smart lamps. The main benefits of this IC include: Dim level control with either an analog or a digital control input Selectable modes for high power factor or low ripple, allowing a wide LED power range Large dimming range Single stage topology for small PCB footprint Ease of design-in Integrated start-up JFET Low electronic Bill Of Material (BOM) Various converter topologies supported The IC drives an external switch for easy power scaling. It has been designed to start up directly from the High-Voltage (HV) supply by an internal high-voltage current source. Flyback, buck and buck-boost circuit topologies are supported. Primary side sensing provides accurate output current control. The IC can detect analog signals (according to IEC60929 annex E) or digital control signals and translate them to a continuous LED current in multiple ways. It can operate in three switching modes at two switching frequency ranges. It offers tradeoffs between the output current ripple, the mains current Total Harmonic Distortion (THD) and the application size. The IC incorporates all required protection features.SSL5511T NXP Semiconductors Greenchip controller for LED lighting with DIM pin 2. Features and benefits LED controller IC for driving strings of LEDs or high-voltage LEDs from rectified mains High-efficiency switch mode buck, flyback or buck-boost controller driving an external power FET Two maximum switching frequencies for highest efficiency or smallest application size Zero current switching at switch turn-on Zero voltage or valley switching at switch turn-on Selectable low THD or low LED current ripple modes Analog IEC60929 input or digital control input for dimming Continuous (analog) regulation of LED current in both the dimming control modes Dim curve selection based on the control input type No binning on LED forward voltage required LED current accuracy within 4 % across variations in components and conditions Built-in Protections: UnderVoltage LockOut (UVLO) Leading Edge Blanking (LEB) OverCurrent Protection (OCP) Internal OverTemperature Protection (OTP) Brownout protection Output Short Protection (OSP) Output open OverVoltage Protection (OVP) Mains synchronization loss protection Low component count LED driver solution Compatible with wall switches with built-in indication light during standby( IC lifetime matches or surpasses LED lamp lifetime 3. Applications Compact mains connected, remote-controlled LED lamps with accurate, dimmable current output for single or universal mains voltages, including 100 V (AC), 120 V (AC) and 230 V (AC). External components determine the power level. The power level ranges from 4 W to over 25 W. Applications fit in common form factors like PAR, GU10, A19, and the candle form factor. SSL5511T All information provided in this document is subject to legal disclaimers. NXP Semiconductors N.V. 2014. All rights reserved. Product data sheet Rev. 2 30 June 2014 2 of 22