如题,我在设计LM5023的时候输入电压时220Vac,高压启动的MOSFET漏极电阻采用datasheet推荐的10K电阻,源级电阻采用2M,一上电10K的电阻就会爆掉,换算过来输入的电压减掉15V,乘以1.414再做平方,然后除以10K,算出来功率有4W之多,如果把漏极电阻改1M,源级电阻改1M,系统就可以正常工作。关于漏极电阻10K有点无法理解,还请解答。
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