FL77905 - Fairchild Semiconductor

FL77905 Analog / PWM / Phase-cut Dimmable Compact LED Direct AC Driver

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 compatib.

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 Dr.