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This literature is subject to all applicable copyright laws and is not for resale in any manner.FL77905 Analog / PWM / Phase-cut Dimmable Compact LED Direct AC Driver July 2016 FL77905 Analog / PWM / Phase-cut Dimmable Compact LED Direct AC Driver Features Description The FL77905 is a direct AC line LED driver with minimal The simplest Direct AC LED Driver with Only Two number of external RC passive components. In normal External RC Passive Components configuration, one resistor is to adjust LED power, and Wide AC Input Range : 90~305 V AC one capacitor is to provide a stable voltage to an internal biasing shunt regulator. Three Integrated High-Voltage LED Constant Current Sinks of up to 75 mA (RMS) Capability The FL77905 provides phase-cut dimming with wide dimming range, smooth dimming control and good TRIAC Dimmable (Leading/Trailing Edge) dimmer compatibility. It achieves high efficiency with Rheostat Dimmable high PF and low THD which makes the FL77905 suitable for high-efficiency LED lighting systems. The Analog/Digital PWM Dimming Function FL77905 can also be used with a rheostat dimmer High Power Factor (above 0.98 in normal switches which are suitable for desktop or indoor lamps. configuration) The FL77905 has a dedicated DIM pin which is Adjustable LED Power with an External Current designed to be used with analog or digital PWM Sense Resistor dimming. Low Harmonic Content (THD under 20% in Normal Operation of FL77905 admits driving higher-wattage Configuration) systems, such as street lights and down lights, by simply parallel connecting the driver ICs. Compact SOIC 8-Lead Package Flexible LED Forward Voltage Configuration Power Scalability with Multiple Driver ICs Over-Temperature Protection (OTP) Applications General LED Driving Solution for Residential, Commercial and Industrial Lighting Ordering Information Operating Packing Part Number Package Temperature Range Method 8-Lead, Small Outline Integrated Circuit FL77905MX -40 to 125C (SOIC) JEDEC MS012 150 Narrow Body, 2,500 per Reel Exposed Pad 2016 Fairchild Semiconductor Corporation www.fairchildsemi.com FL77905 Rev. 1.0