ST STEVAL-ILL019V1 35W 4路HB RGGB LED驱动方案
ST 公司的STEVAL-ILL019V1是基于L6562A 的离线35W 4路HB RGGB LED驱动器，LED恒定电流350mA，交流输入电压88V-265VAC，每路可驱动5-13个LED，RGGB LED最大功率32W（宽输入电压）或42W（EU输入电压），和EN55015 与EN61000-3-2兼容。本文介绍了L6562A主要特性，方框图，EVL6562A-TM-80W和EVL6562A-400W演示板的电路图，以及STEVAL-ILL019V1主要特性，方框图，高PF反激转换器电路图与四路可调整降压转换器和微控制器电路图，材料清单。
The L6562A is a current-mode PFC controller operating in Transition Mode (TM). Coming with the same pin-out as its predecessors L6561 and L6562, it offers improved performance.
The highly linear multiplier includes a special circuit, able to reduce AC input current distortion, that allows wide-range-mains operation with an extremely low THD, even over a large load range.
The output voltage is controlled by means of a voltage-mode error amplifier and an accurate (1% @TJ = 25℃) internal voltage reference.
The device features extremely low consumption (60μA max. before start-up and <5 mA operating) and includes a disable function suitable for IC remote ON/OFF, which makes it easier to comply with energy saving requirements (Blue Angel, EnergyStar, Energy2000, etc.).
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