输入要求:10V以下的均可(只要满足10V以内,任意范围均可),输出在1~3V。输入电流没有要求,LED的输出电流在1A以内。
只用驱动单个LED,用于对系统的标定。
所以需要:
PWM信号脉宽仅为500ns,周期为10us时,能实现电流的稳定输出。
芯片精度高,温度稳定性好。在不同温度下能输出恒定的电流。
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