UCL2300 Overview
The UTC UCL2300 is a high precision primary-side regulation controller with single stage Active PFC, specially designed for universal input offline flyback or buck-boost constant current LED lighting. The controller with on-chip PFC circuit achieves high power factor and low THD. Operating in critical conduction mode, the power MOSFET switching loss is reduced and the inductor is fully utilized.
UCL2300 Key Features
- Single-stage active PFC for high power factor and low THD
- Primary side control constant current operation, No
- Ultrafast LED start (<200ms @85V)
- ±3% LED current accuracy
- Excellent line and load regulation
- Critical conduction mode operation
- Source driving method
- Ultra-low (20μA) startup current
- Ultra-low (600μA) Operating current
- High resistance feedback resistor for improved efficiency