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TPA3116过载保护



我想问一下TPA3116的短路保护电流是多大?我做的TPA3116功放板,BTL接法,使用的是TI参考电路的原理图。负载为8Ω喇叭时,开到最大声可以正常工作,然后将负载变为4Ω喇叭开一半声音就功放关断了。供电电压21V。手中也没有东西能测试到底有没有达到50W..所以特来咨询输出电流大多时会被保护。