Linear LT3795 110V LED电源解决方案

Linear公司的LT3795是采用广谱频率调制的110V LED控制器,可以恒压或恒流输出,非常适合驱动LED,内部7.7V稳压电源可驱动外接N沟功率MOSFET,输入电压从4.5V到110V,3000:1真色彩PWM调光,恒压稳压±2%,可编程输入电流,可调频率从100kHz到1MHz,主要应用在大功率和高压LED,电池充电器和精密的限流电压稳压器.本文介绍了LT3795主要特性,方框图,几种应用电流和演示板电路图,测试电路和材料清单.

The LTR3795 is a DC/DC controller designed to regulate a constant-current or constant-voltage and is ideal for driving LEDs. It drives a low side external N-channel power MOSFET from an internal regulated 7.7V supply. The fixed frequency and current mode architecture result in stable operation over a wide range of supply and output voltages.
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