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Ultra Low Power Reset Generator


关键词: microprocessor reset generator, ultra-low power, relaxation oscillator, long battery life, pulse generator



Abstract: This application note describes an ultra-low power microprocessor reset generator that is capable of operating for decades from a single AA Lithium cell. Where continuous intermittent reset is desired, this relaxation-oscillator circuit can provide adjustable pulse width and reset period. Typical operation producing 100µs pulses each second requires only 1µA current from a 1.8-5.5V supply. Formulas are provided for calculation of component values for a wide range of pulse width and period.


Ultra Low Power Reset Generator.pdf