FL77905

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  The simplest Direct AC LED Driver with Only Two External RC Passive Components  Wide AC Input Range : 90~305 VAC  Three Integrated High-Voltage LED Constant Current Sinks of up to 75 mA (RMS) Capability  TRIAC Dimmable (Leading/Trailing Edge)  Rheostat Dimmable  Analog/Digital PWM Dimming Function  High Power Factor (above 0.98 in normal configuration)  Adjustable LED Power with an External Current Sense Resistor  Low Harmonic Content (THD under 20% in Normal Configuration)  Compact SOIC 8-Lead Package  Flexible LED Forward Voltage Configuration  Power Scalability with Multiple Driver ICs  Over-Temperature Protection (OTP) Description The FL77905 is a direct AC line LED driver with minimal number of external RC passive components. In normal configuration, one resistor is to adjust LED power, and one capacitor is to provide a stable voltage to an internal biasing shunt regulator. The FL77905 provides phase-cut dimming with wide dimming range, smooth dimming control and good dimmer compatibility. It achieves high efficiency with high PF and low THD which makes the FL77905 suitable for high-efficiency LED lighting systems. The FL77905 can also be used with a rheostat dimmer switches which are suitable for desktop or indoor lamps. The FL77905 has a dedicated DIM pin which is designed to be used with an...