Diodes Incorporated introduced the APX803L. This micro-power voltage detector is designed to support the supervisory circuits of microprocessors and microcontrollers by enabling accurate monitoring of voltage levels and will generate a reset signal whenever a supply rail falls below a defined threshold. The APX803L’s low quiescent current also makes it very attractive when appliances like televisions are operating in standby mode.
Offered in a detection voltage level range of 1.2V to 5.0V in 0.1V steps, the APX803L provides a threshold accuracy of ±1.5%, while consuming just 1μA and requiring no external components. Whenever the monitored Vcc power supply rail drops below the chosen threshold, the APX803L asserts a reset signal within 20μs that is held until the supply rail recovers to a level above the threshold.
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