Single-Stage Primary-Side-Regulation PWM Controller
FL7730 — Single-Stage Primary-Side-Regulation PWM Controller for PFC and LED Dimmable Driving
FL7730 Single-Stage Prima...
Description
FL7730 — Single-Stage Primary-Side-Regulation PWM Controller for PFC and LED Dimmable Driving
FL7730 Single-Stage Primary-Side-Regulation PWM Controller for PFC and LED Dimmable Driving
Features
Compatible with Traditional TRIAC Control
(No need to change existing lamp infrastructure: wall switch & wire)
Compatible with Non-Dimming Lamp Designs Cost-Effective Solution without Input Bulk Capacitor
and Feedback Circuitry
Power Factor Correction (PFC) Accurate Constant-Current (CC) Control,
Independent Online Voltage, Output Voltage, Magnetizing Inductance Variation
Line Voltage Compensation for CC Control Linear Frequency Control for Better Efficiency and
Simple Design
Open-LED Protection Short-LED Protection Cycle-by-Cycle Current Limiting Over-Temperature Protection with Auto Restart Low Startup Current: 20 μA Low Operating Current: 5 mA SOP-8 Package Available Application Voltage Range: 80 VAC ~ 308 VAC
Applications
LED Lighting System
Description
This highly integrated PWM controller, FL7730, provides several features to enhance the performance of singlestage flyback converters. The proprietary topology, TRUECURRENT® enables the simplified circuit design for LED lighting applications.
TRIAC dimming is smoothly managed by dimming brightness control without flicker. By using single-stage topology with primary-side regulation, an LED lighting board can be implemented with few external components and minimized cost. It does not require an inpu...
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