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logic level MOSFET

Other Parts Discussed in Thread: CSD18542KCS

Dear Sir,

I am choosing  a MOSFET of motor driver but I found some MOSFETs  (CSD18542KCS) with logic level have a lower Vgs (Threshold Voltage).

what is the Pros and Cons for the MOSFET with logic level? what is the application for? Thanks

  • 亲;标准MOSFET的Vth大约在3V水平,9V以上充分导通。低于这个水平的MOSFET即为逻辑电平MOSFET。

    这个电平MOSFET大约有两个系列:5V逻辑电平(Vth大约在1.8V水平;4.5V充分导通)和2.7V逻辑电平(Vth大约在1V左右;1.8V冲锋导通)。它们可以用对应的逻辑电平驱动到完全开关状态。

    逻辑电平MOSFET主要用于低压系统;如电池管理等。对于电机驱动;除非是两节及以下锂电供电系统,最好用标准MOSFET。