UL22 Overview
Featured Device, UTC UL22, is a PWM controller with innovative Free-DimmingTM technology. The controller drives one of the two strings of LEDs by an ON/OFF AC wall switch and provides a cost effective solution for light control. It supports power-factor-correction function in applications.
UL22 Key Features
- FEATURES
- Free-DimmingTM technology
- Proprietary technology using ON/OFF wall switch to select one of the two LED channels
- Supports high-side Buck, Buck-Boost and Flyback topologies
- High power factor with Discontinue-Current-Mode (DCM) control
- Low start-up current and operating current to maximize conversion efficiency
- Under-voltage lockout (UVLO) with hysteresis
- Provides plete protection functions
- Maximum gate driver output clamp -VDD pin Over-Voltage Protection -Cycle-by-cycle current limit -LEDs Over-Current Pr
- ORDERING INFORMATION