在同一路电源上接了多个TPS2491电路来控制多路的电源输出,同样的电路但只有第一路功能正常,后面的其他几路均不正常,设计为5A阈值,但只有1.6A便跳闸。第一路的元器件选择和其他路一模一样,PCB布局也极为相似。
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