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求指点48V工作情况下LM2594HVM-12发热烫，36V工作正常
条件：48V供电无负载
加大散热即可。
撒热没问题，布的6层板
亲；100层板都与散热没毫关系。建议扩大散热面积或安装散热器。
亲，你好这款IC本身就发热很大吗？我用36V供电发热就正常
亲；IC空载开关损耗，与电压的平方成正比。电压高一点；会热很多。
