LT3475/LT3475-1 的典型应用是双路降压 DC-DC 转换器,设计用作恒流源。内部检测
电阻器监控输出电流,实现精确的电流调节,非常适合驱动高电流 LED。高侧电流检测允许接地阴极 LED 运行。在 50mA 至 1.5A 的宽电流范围内保持高输出电流精度,从而实现宽调光范围
说明
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Typical Application for LT3475/LT3475-1 are dual step-down DC-DC converters designed to operate as a constant-current source. An internal sense resistor monitors the output current allowing accurate current regulation ideal for driving high current LEDs. The high side current sense allows grounded cathode LED operation. High output current accuracy is maintained over a wide current range, from 50mA to 1.5A, allowing a wide dimming range