MAX809 Series, MAX810 Series

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8

Detail Operation Description

The

MAX809/810

series

microprocessor

reset

supervisory circuits are designed to monitor the power

supplies in digital systems and provide a reset signal to the

processor without any external components. Figure 2 shows

the timing diagram and a typical application below. Initially

state for MAX809, or in the low state for MAX 810 devices.

significantly deficient, it will fall below the lower detector

in the low state for the MAX809, or in the high state for the

NCP810 devices. After completion of the power

oscillator circuitry and digital counter to count. After the

count of the timeout period, the reset output will revert back

to the original state.

0V

0V

Input Voltage

Reset Output

MAX809, NCP803

Reset Output

MAX810

Figure 15. Timing Waveforms