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请帮忙推荐与tps92638有类似功能的led驱动芯片，需要提供共阴极连接方式，由基准电阻器分别控制不同通道的输出电流。可以pwm调光，尽可能是多通道输出，民用芯片或者汽车芯片都可以
tps92638为什么不可以？
