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INA168使用问题

Other Parts Discussed in Thread: INA168

我最近用INA168做一个Boost升压电路的过流保护,附上我用TI-NA仿真的图:

按照Datasheet上给的公式,应该是把Rs上的电压放大20倍,而且确实我也仿真出来了,

可是在实际电路中168的输出电压就只有0.5V左右,而且还不稳定,一点点的在增加,我很奇怪,请专家老师解答一下。