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MOSFET规格书中安全工作区SOA在MOS驱动电路设计时用处很大,1000字搞懂它
MOS工作的实际最大漏源电压VDS=30V,未超过VDS(max)=40V。并且MOS工作的实际最大电流ID=5A,未超过ID(max)= 310A,脉冲时间1ms,看图会发现超过了1ms的SOA区,所以MOSFET会损坏。 需要注意的是MOSFET规格书给出的SOA曲线是环境温度25℃的曲线,如果你的产品环境温度更大 ...
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