Part FL77944
Description Analog/PWM/Phase-cut Dimmable High Power LED Direct AC Driver
Manufacturer Fairchild Semiconductor
Size 602.62 KB
Fairchild Semiconductor
FL77944

Overview

The FL77944 is a direct AC line LED driver with a 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 simplest Direct AC LED Driver with Only Two External RC Passive Component
  • Wide AC Input Range: 90~305 VAC
  • Four Integrated High-Voltage LED Constant Current Sinks of up to 150 mA (RMS) Capability
  • TRIAC Dimmable (Leading/Trailing Edge)
  • Rheostat Dimmable
  • Analog/Digital PWM Dimming Function
  • High Power Factor (above 0.98 typically)
  • Adjustable LED Power with an External Current Sense Resistor
  • Low Harmonic Content (THD under 20% typically)
  • SOIC-16 EP Package