想找一个可调0~2.5A,可调精度0.1ma的恒流LED驱动芯片。
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我之前用这个架构做,精度符合预期,但是MOS管发热非常严重,就想找其他架构或者芯片来做
现在选用LM3409这颗芯片,不知道用DAC来模拟调光,在低电流的情况下LED是否会闪烁,工作频率大概是多少,在工业相机最小曝光时间拍摄下是否会有闪烁情况?