KP1222SPA系列是高度集成的恒流 LED 功率开关芯片采用了准谐振的工作模式，同时加以有源功率因数校正控制技术可以满足高功率因数、低谐波失真和高效率的要求KP1222SPA内部集成消磁信号检测技术，同时集成有高压 MOSFET 以及供电电路，大需辅助绕组检测消磁和供电，简化了系统的设计和生产成本。芯片集成高精度电感电流采样技术和高精度电流比较器参考闽值电压，同时集成有线电压补偿技术，具有良好的恒流输出特性。KP1222SPA还集成了独有的调光技术，能提供优异的可控硅调光性能。KP1222SPA集成有完备的保护功能以保障系统安全可靠的运行，如: VDD 欠压保护功能 (UVLO)、逐周期电流限制(OCP)、过热保护(OTP)、输出过压保护(OVP)、LED 开路和短路保护等。

KP1222SPA series is a highly integrated constant current LED power switch chip using a quasi-resonant mode of operation, while active power factor correction control technology can meet the requirements of high power factor, low harmonic distortion and high efficiency KP1222SPA internal integrated degaussing signal detection technology.At the same time, the high voltage MOSFET and power supply circuit are integrated, and the auxiliary winding is needed to detect degaussing and power supply, which simplifies the design and production cost of the system.The chip integrates high precision inductive current sampling technology and high precision current comparator reference voltage, and integrates wired voltage compensation technology, which has good constant current output characteristics.The KP1222SPA also integrates unique dimming technology to provide superior thyristor dimming performance.KP1222SPA is integrated with complete protection functions to ensure safe and reliable operation of the system, such as: VDD undervoltage protection function (UVLO), cycle current limit (OCP), overheat protection (OTP), output overvoltage protection (OVP), LED open and short circuit protection.