FL103 Datasheet | Fairchild Semiconductor

Features - Low Standby Power: < 30 m W - High-Voltage Startup - Few External ponent Counts - Constant-Voltage (CV) and Constant-Current (CC) Control without Secondary-Feedback Circuitry - Green-Mode: Linearly-Decreasing PWM Frequency - Fixed PWM Frequency at 50 k Hz and 33 k Hz with Frequency Hopping to Solve EMI Problems - Peak-Current-Mode Control in CV Mode - Cycle-by-Cycle Current Limiting - VDD Over-Voltage Protection (OVP) - VDD Under-Voltage Lockout (UVLO) - Adjustable Brownout Detector - Gate Output Maximum Voltage Clamped at 15 V - Thermal Shutdown (TSD) Protection - Available in the 8-Lead SOIC Package - Application Voltage Range: 80 VAC ~ 308 VAC Applications - LED Illumination - Battery chargers for cellular phones, cordless phones, PDA, digital cameras, power tools Description This third-generation Primary-Side-Regulation (PSR) and highly integrated PWM controller provides features to enhance the performance of LED illumination. The proprietary topology, TRUECURRENT®, enables precise CC regulation and simplified circuit for LED illumination applications. The result is lower-cost and smaller LED lighting pared to a conventional design or a linear transformer. To minimize standby power consumption, the proprietary green-mode function provides off-time modulation to linearly decrease PWM frequency under light-load conditions. Green mode assists the power supply in meeting the power conservation requirements. By using the FL103, LED illumination can be implemented with few external ponents and minimized cost. Figure 1. 8-Lead SOIC Ordering Information Part Number FL103M Operating Temperature Range -40°C to +125°C Top Mark Package 8-Lead, Small-Outline Package (SOIC-8) Packing Method Tape & Reel © 2012 Fairchild Semiconductor Corporation FL103 - Rev. 2, Feb-2020 .fairchildsemi. - Primary-Side-Regulation PWM Controller for LED Illumination Application Diagram Block...