MAX6794TPSD4+

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Power management integrated circuit (PMIC) supervision integrated circuits (Supervisors) provide essential protection and communication between system components. This line of devices provide a variety of services, ranging from monitoring system voltage and current state to triggering actions depending on certain conditions. The MAX6794TPSD4+ is a supervisory device designed specifically with system monitoring and control in mind. It offers three reset outputs and one watchdog output, and can be used in hundreds of applications in various fields.

Features

The MAX6794TPSD4+ is a 5.5V TDFN-EP package with a low operating current (0.5µA max), making it well suited for battery-powered applications. It also offers several safety features, such as thermal shutoff and over-temperature protection for added reliability.

The MAX6794TPSD4+ offers several thresholdss (3.15V, 4.63V, 4.9V) can be adjusted with external resistors to suit different applications. It offers rising, active-high and falling, active-low reset outputs, optimized for both push-pull and open-drain architectures. There is also a watchdog output that can be used to terminate an application if it doesn\'t respond within a set time.

Applications

The MAX6794TPSD4+ can be used for system monitoring and control in a wide variety of applications:

• Battery powered systems
• Portable medical instruments
• Robotics
• Automotive
• Consumer electronics
• Industrial
• Military

Working Principle

The MAX6794TPSD4+ works by reading the voltage of the system and comparing it with various thresholds. It then uses this data to decide whether or not to activate the reset and watchdog output lines. If the voltage is above the thresholds, then the reset line will remain deactivated and the watchdog will remain inactive. If the voltage drops below one of the thresholds, then the reset line will be activated and the watchdog will begin counting down. If the voltage does not go above the threshold again within a preset time, then the watchdog will trigger the reset and end the application.

The device also provides thermal shutoff and over-temperature protection. If the device\'s temperature goes too high, then the thermal shutoff circuitry will activate and shut off the device until it has cooled down.

Conclusion

The MAX6794TPSD4+ is a PMIC supervisor device specifically designed for battery powered systems. It offers three adjustable reset thresholds, a watchdog output, and thermal shutoff, making it well suited for a wide range of applications. It is an essential tool for ensuring system safety and reliability.

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