ET6290是一颗具有PWM调制功能的恒流LED驱动电路，内置9个独立低阻LED驱动通道。其输出端的平均电流决定于PWM占空比，周期内高占空比将使得LED具有更高的亮度-ET6290 is a PWM modulation constant current LED driver circuit, built in 9 independent low resistance LED drive channel. The average current of the output depends on