关机电流问题
时间:10-02
整理:3721RD
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HI
在TI TPS61251datasheet有定义shutdown电流: Vin turned on when EN is connected to GND and no voltage is present at Vout, 此时shutdown电流最大是3.5uA.
但是在参数表下面有补充说明: When the power good threshold is triggered the first time a comparator is turned on to observe the output voltage increasing the shutdown current.
也就是说关机电流是有时序的,是否有谁测试过这个参数?
Hi
时序上是EN是先拉低,后启动Vin,才是这么小的关机电流。