关键词: semiconductor toggle switch, on-off switch, single button, portable equipment, portable devices, toggle switch, latching function, comparator
Abstract: A low-power circuit formed with resistors, capacitors, a pushbutton switch, and two comparators serves as a toggle switch that directly drives loads up to 40mA, providing a known state following power up, battery insertion, or system timeout.
![](http://uphotos.eepw.com.cn/soothmusic/pics/0ea6fd3fc654e922f38140dd39e748b5.jpg)