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TPA6120的静态电流问题

Other Parts Discussed in Thread: TPS65130

我们准备做一个产品,想用TPA6120做耳机放大,现在测试发现正负电源的输入电流在17ma大小,但是数据手册里面写的最大的才15ma,而且是正负15V供电的

我们是用的TPS65130升压到6.7V和-6.5V的,使用锂电池供电

请问这个是什么原因?有没有办法解决?