MAX6801UR26D3+T Datasheet/PDFThe MAX6801UR26D3+T is a highly integrated System Management Supervisor IC from Maxim. It is a high-performance Supervisory IC that provides voltage monitoring and reset output for microprocessor-based systems. It features a watchdog timer that can be configured as a reset source, a power-on reset generator with adjustable delay, a temperature sensor, and a high-voltage detector with an adjustable voltage threshold.
The main application area of MAX6801UR26D3+T is in the field of PMIC (Power Management IC) Supervisors, as this chip implements functions to ensure proper system operation in adverse conditions. It is mainly used as an overvoltage, undervoltage, and over-temperature protection device for microprocessor-based systems.
The MAX6801UR26D3+T contains five voltage monitors and one temperature monitor. Four of the voltage monitors are adjustable down to 0.6V and can serve as undervoltage monitors, while the remaining one can serve as an overvoltage monitor. The temperature monitor can be configured as an overtemperature monitor. The two monitors with adjustable thresholds are used to monitor voltages ranging from 0.6v to 3.63V. The MAX6801UR26D3+T also contains two reset outputs, which can be configured as Power-On Reset (POR) outputs or as Watchdog Timer (WDT) outputs.
The working principle behind the MAX6801UR26D3+T is relatively simple. When the voltage or temperature deviates from the pre-defined thresholds, it will trigger the appropriate reset output. This reset output can then be used to provide an extra measure of protection by resetting the microprocessor. The reset output can also be configured as a watchdog timer, which can be used to detect system lockup, or a power-on reset, which can be used to ensure proper system initialization from power-up.
In summary, the MAX6801UR26D3+T is a highly integrated PMIC supervisor IC. It provides voltage monitoring, temperature monitoring, and reset outputs. It is mainly used as an overvoltage, undervoltage, and overtemperature protection device for microprocessor-based systems. The MAX6801UR26D3+T works by triggering the appropriate reset output when the voltage or temperature deviates from the pre-defined thresholds.