如上图所示,想要3845的输出脉冲幅值为5V,作为数字电平,输入给后端的驱动芯片UC3705,在使用UC3705输出驱动MOS管。
因为给3845供电已经有一个12V辅助源了,不想在用个5V辅助源,就想如果作为数字电平输出,3845输出级应该不需要太大电流,经查其VREF输出电流能力有30mA,应该够用了。
不知道这种做法可行不?
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