ADM690AARN

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ADM690AARN is a programmable voltage monitoring supervisor. It provides over-voltage protection and a programmable watchdog timer and reset output. This makes it an ideal choice for a range of applications, including automotive, industrial, and medical. The ADM690AARN is a cost-effective, low power supervisor, providing dependable system monitoring with minimal increase in power consumption.

The main application field of the ADM690AARN is to monitor system voltages and issue a reset signal whenever the voltage is outside of the acceptable range. This voltage is monitored through a dedicated voltage detector, which compares the system voltage to the factory-set thresholds. The reset is triggered when the voltage monitor determines that the voltage is out of the acceptable range. The reset pulse width and delay can be programmed through two sets of resistors connected to dedicated pins.

The ADM690AARN also features a watchdog timer with programmable timeout period. The watchdog timer is running constantly and if the watchdog input is not forced low during the duration of the timeout period, a reset is triggered. The timeout period can be adjusted through two external resistor and capacitor combinations connected to dedicated pins.

Overall, the ADM690AARN combines a cost-effective voltage monitoring supervisor and watchdog timer with a low power consumption, making it an ideal choice for a wide range of applications. It provides monitoring and reset output when the system voltage is outside of the acceptable range, as well as a programmable watchdog timer to detect system lock-up.

The working principle of the ADM690AARN is simple. When in standby mode, the voltage monitor is constantly comparing the system voltage to the factory-set thresholds. If the system voltage is outside of the acceptable range, the reset is triggered. This reset can be delayed and its pulse width can be programmed with two sets of resistors connected to dedicated pins. The watchdog timer is also running and when the watchdog input is not forced low during the duration of the timeout period, a reset is triggered. The timeout period can be adjusted through two external resistor and capacitor combinations connected to dedicated pins. Finally, the reset outputs will assert a reset signal when any of the above conditions are met.

In conclusion, the ADM690AARN is an ideal choice for system voltage monitoring and reset output when the voltage is outside of the acceptable range. Its low power consumption and simple working principle make it a great choice for a range of applications, including automotive, industrial, and medical.

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