NCL30185 Description
NCL30185 Power Factor Corrected Quasi-Resonant Primary Side Current-Mode Controller for LED Lighting with Line Step Dimming and .onsemi. Thermal Foldback The NCL30185 is a controller targeting isolated and non−isolated “smart−dimmable” constant−current LED drivers. Designed to support flyback, buck−boost, and SEPIC topologies, its proprietary current−control algorithm provides near−unity power factor and 8 1 SOIC−8...
NCL30185 Key Features
- Quasi-resonant Peak Current-mode Control Operation
- Valley Lockout Optimizes Efficiency over the Line/Load Range
- Constant Current Control with Primary Side Feedback
- Tight LED Constant Current Regulation of ±2% Typical
- Power Factor Correction
- 3 Step Dimming (70/25/5%)
- Line Feedforward for Enhanced Regulation Accuracy
- Low Start-up Current (10 mA typ.)
- Wide Vcc Range
- 300 mA / 500 mA Totem Pole Driver with 12 V Gate Clamp