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LM3409: LM3409第一个EN时电流产生和PWM之间延时70uS,能不能消除或者减少

Part Number: LM3409

  绿色为PWM,黄色为LED电流波形,LED第一次被点亮得时候,EN信号到LED电流得产生有一个固定70uS得延时,想请教一下这个时间延时能不能消除或者减少,