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Semiconductor Toggle Switch

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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.
Maxim/Dallas > App Notes > AMPLIFIER AND COMPARATOR CIRCUITS

Keywords: semiconductor toggle switch, on-off switch, single button, portable equipment, portable devices, May 03, 2004
toggle switch, latching function, comparator

APPLICATION NOTE 3223
Semiconductor Toggle Switch

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.


We are all used to single button on-off switches on portable appliances such as mobile (cellular) phones. The
single button has several advantages over a toggling switch that delivers battery power directly to the
electronics:


q It takes up less front panel space.
……
Semiconductor Toggle Switch
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