FL7734 - Fairchild Semiconductor

FL7734 Single-Stage Primary-Side-Regulation PWM Controller

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 str.

Features

 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
 Cycle-by-Cycle Current Limiting
 Over-Temperature Protection with .