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KP1222SPA系列是高度集成的恒流 LED 功率開關(guān)芯片采用了準諧振的工作模式，同時加以有源功率因數(shù)校正控制技術(shù)可以滿足高功率因數(shù)、低諧波失真和高效率的要求KP1222SPA內(nèi)部集成消磁信號檢測技術(shù)，同時集成有高壓 MOSFET 以及供電電路，大需輔助繞組檢測消磁和供電，簡化了系統(tǒng)的設計和生產(chǎn)成本。芯片集成高精度電感電流采樣技術(shù)和高精度電流比較器參考閩值電壓，同時集成有線電壓補償技術(shù)，具有良好的恒流輸出特性。KP1222SPA還集成了獨有的調(diào)光技術(shù)，能提供優(yōu)異的可控硅調(diào)光性能。KP1222SPA集成有完備的保護功能以保障系統(tǒng)安全可靠的運行，如: VDD 欠壓保護功能 (UVLO)、逐周期電流限制(OCP)、過熱保護(OTP)、輸出過壓保護(OVP)、LED 開路和短路保護等。

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.