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LM3478: LM3478的shutdown引脚电流问题

Part Number: LM3478

LM3478的数据手册中,shutdown引脚电流分别在VSD=5V和0V的情况下测试,在FA/SD引脚处的FA电阻后串联一个电流表,但得到的结果完全不同,此时输入电压是供电的,我想请问可能的原因是什么,测试引脚、测试方案是否正确。

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