Datasheet4U Logo Datasheet4U.com

FL77944 Datasheet Analog/PWM/Phase-cut Dimmable High Power LED Direct AC Driver

Manufacturer: Fairchild (now onsemi)

📥 Download Datasheet

General Description

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 FL77944 provides phase-cut dimming with wide dimming range, smooth dimming control and good dimmer compatibility.

Overview

FL77944 — Analog/PWM/Phase-cut Dimmable High Power LED Direct AC Driver July 2016 FL77944 Analog/PWM/Phase-cut Dimmable High Power LED Direct AC.

Key Features

  • 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).

More Datasheets from Fairchild (now onsemi)

Part Number Description
FL77904 Phase-cut Dimmable Compact LED Direct AC Driver
FL77905 Analog / PWM / Phase-cut Dimmable Compact LED Direct AC Driver
FL7701 Smart LED Lamp Driver
FL7730 Single-Stage Primary-Side-Regulation PWM Controller
FL7730MY Single-Stage Primary-Side-Regulation PWM Controller
FL7732 Single-Stage PFC Primary-Side-Regulation Offline LED Driver
FL7733 Primary-Side-Regulated LED Driver
FL7733A Primary-Side-Regulated LED Driver
FL7734 Single-Stage Primary-Side-Regulation PWM Controller
FL7930 Single-Stage Flyback and Boundary-Mode PFC