Part FL7734
Description Single-Stage Primary-Side-Regulation PWM Controller
Manufacturer Fairchild Semiconductor
Size 549.78 KB
Fairchild Semiconductor
FL7734

Overview

The FL7734 is a highly integrated PWM controller with advanced Primary-Side-Regulation (PSR) technique to minimize components for low power LED lighting solutions. Using the innovative TRUECURRENT® technology for tight constant-current control, it enables designs with constant-current (CC) tolerance of less than ±1% in the wide line voltage range to meet stringent LED brightness requirements.

  • Excellent Dimmer Compatibility by Active Dimming Control
  • Programmable Dimming Curve and Input Current Management
  • Constant LED Current Regulation in Large Phase Angle Range
  • Cost-Effective Solution without Input Bulk Capacitor and Feedback Circuitry
  • Accurate Constant-Current (CC) Control, Independent on Line Voltage, Output Voltage, Magnetizing Inductance Variation
  • Power Factor Correction (PFC)
  • Fast Startup utilizing Bleeding Circuit
  • Open-LED Protection
  • Short-LED Protection
  • Sensing Resistor Short Protection