NCL30081 Overview
Pin No Pin Name Function 1 ZCD Zero Crossing Detection 2 GND − 3 CS Current sense 4 DRV Driver output 5 VCC Supplies the controller 6 VIN Input voltage sensing Brown−Out Pin Description Connected to the auxiliary winding, this pin detects the core reset event. The controller ground This pin monitors the primary peak current The current capability of the totem pole gate drive (+0.3/−0.5 A) makes it suitable to...
NCL30081 Key Features
- Quasi-resonant Peak Current-mode Control Operation
- Primary Side Sensing (no optocoupler needed)
- Wide VCC Range
- Precise LED Constant Current Regulation ±1% Typical
- Line Feed-forward for Enhanced Regulation Accuracy
- Low LED Current Ripple
- 250 mV ±2% Guaranteed Voltage Reference for Current Regulation
- ~ 0.9 Power Factor with Valley Fill Input Stage
- Low Start-up Current (10 mA typ.)
- Small Space Saving Low Profile Package