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LM5175使用问题

Other Parts Discussed in Thread: LM5175, UCC28950

LM5175想做大功率输入18-36V 输出33V/25A或更大功率能否加驱动来实现,如是直接驱动最大功率能做到多少W,谢谢!

  • Hi

        能做多大功率与芯片驱动能力以及MOS的选取有关,很难量化。

        如果你选用LM5175,  做起来会比较困难,除了芯片驱动力不是很大,需要选择尽量小Qg的MOS, 而且在升降压切换的时候容易出问题。

        或者你可以选择UCC28950这类全桥的芯片来做,TI有提供一个类似的案例: www.ti.com.cn/.../pmp6712