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TPS61030没上电时,使能端与地呈低阻抗

Other Parts Discussed in Thread: TPS61030

在使用TPS61030时发现:芯片没有接输入电压时,使能端与地的阻抗很小,接近导通。如果把使能端直接接在输入电压端,这样在上电时,可能导致电池短路。所以在使用此芯片时,先接上电池,再把使能端接到电池端。(这是为什么呀?)