DESCRIPTION
RS2321A is especially designed for high power factor non-isolated LED driver. The building in perfect current compensation function ensures the accurate output current. RS2321A has very less external components because of high integrated and simple topology. Thanks to novel power supply, RS2321A need not use transformer and it could simplify PCB design. RS2321A integrates cycle-by-cycle current limit, inductor anti-saturation and thermal shutdown circuitry onto a monolithic IC.

FEATURES
• High power factor (More than 0.9)
• High precision output current regulation (±3%)
   when universal AC input voltage
   (85VAC~265VAC)
• Lowest cost and very less component count
   solution
• Need not transformer to simplify design
• Operation in Quasi-Resonant mode
• Programmable output current setting
• Under voltage lockout
• Low startup current (<20μA)
• Building in current compensation
• Building in 300ns LEB time for CS pin
• 4000V HBM ESD
• SOP-7L Green Package

APPLICATIONS
• Non-Isolated LED Lighting Power Supply