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LM5021: 原边控制指导

Part Number: LM5021

最近有一个项目,需要用LM5021做一个DC200-400V输入的高压启动电源,想要尽可能的减小元器件的数量及所占的体积,找了一圈芯片觉得LM5021比较合适,但是没有找到LM5021初级侧控制的指导电路,麻烦您能否帮忙给一些资料。

另外,是否还有其他合适的芯片推荐,开关频率打算在200K以上,越高越好