FTM Board Club
ON Semiconductor
FEBFL7733A_L53U021A
21W Buck-Boost LED Driver for LED Tube

This Tube-Type EVB is a universal line voltage LED driver using the FL7733A Primary Side Regulator (PSR) single-stage controller with PFC. The input voltage range is 90 VRMS – 277 VRMS and there is one DC output with a constant current of 300 mA at 70 Vout.

Features
  • < 3% Total Constant Current Tolerance Over All Conditions
  • < 1% Over Universal Line Voltage Variation
  • < 1% from 50% to 100% Load Voltage Variation
  • < 1% with 20% Magnetizing Inductance Variation
  • Primary-Side Regulation (PSR) Control for Cost-Effective Solution without Requiring Input Bulk Capacitor and Secondary Feedback Circuitry
  • Application Input Voltage Range: 80 VAC - 308 VAC
  • High PF of > 0.9, and Low THD of < 10% Over Universal Line Input Range
  • Fast < 200 ms Start-up (at 85 VAC) using Internal High-Voltage Start-up with VDD Regulation
  • Adaptive Feedback Loop Control for Startup without Overshoot