请问,lm3478的DC输出功率能达到多大?
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你好,
电源的功率取决于Mosfet,电感,二极管等功率器件的选择。LM3478是一款控制器,DR脚的驱动能力决定能实现的功率。如果是直接用DR驱动Mosfet,Mosfet的Cgs最好在1000pF以下,或者Qg小于20nC。如果选择了更大电流的管子,则DR外要加一个driver芯片,如UCC27517。如果加了驱动能力足够的driver,理论上LM3478能实现任何功率。