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麻烦推荐一款LED驱动方案

Other Parts Discussed in Thread: LM3409, LM25117, TPS61169, TPS92640, TPS92641

输入DC24-30V,输出5A,LED负载功率100-120W,LED总压降21-22V左右(6颗LED串联)需要用到模拟调光脚 低电平LED停止工作,高电平LED正常工作。感谢!