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ucc28251在轻载的时候,同步整流的PWM关断机制是怎么控制的

Other Parts Discussed in Thread: UCC28251

ucc28251在轻载的时候,同步整流的PWM关断机制是怎么控制的,希望可以帮忙答疑解惑,谢谢

  • 您好,以下回复来自UCC28251产品线:

    UCC28251的SR disable的逻辑是,只有当UCC28251本身由于某种原因失能的时候,SR才会失能。
    请问您使用了何种gate driver?一种可能的方案是,选用一个带ENABLE引脚的gate driver,然后在轻载时用外部信号将gate driver disable掉。