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ULN2803A与ULN2003的区别

Other Parts Discussed in Thread: ULN2003A

Hello All,

我使用ULN2803A驱动电机时,仅仅需要5V,就可以驱动电机,电流为300~250mA。但是我使用UNL2003A时,需要5.8V才能驱动电机,电流是一样的300~250mA。这是为什么?