用UCD9222和UCD7242套片给6678供电,方案、UCD9222固件同评估板。两路输出(1.0v和0.9v)正常,但0.9v输出通道温度偏高:
在6678时钟没有给的情况下,0.9v电流3A不到,但温度65度左右。当6678的时钟给出后(此时6678出于复位状态),
0.9v电流基本不变,但温度一直上升,在有风扇的情况可以达到107度左右,同时12V供电电流上升。在FUSION界面上没有任何报错和警告。
有没有人碰到这种问题?
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