main feature
 Internally integrated high-voltage 500V MOSFET
 Quasi-resonant working mode improves system efficiency
 ±4% constant current accuracy
 Ultra-low operating current
 No auxiliary winding design
 Integrated high-voltage current source improves startup speed
 Integrated line voltage compensation optimized adjustment rate
 Integrated overheating power compensation
 Internal protection function:
 LED short circuit protection
 Chip overheating protection
 Cycle-by-cycle current limit
 Leading edge blanking
 Pin suspension protection
 VDD pin undervoltage protection
 Package type SOP-8