STM795RM6F Integrated Circuits (ICs)

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Supervisory integrated circuits (supervisors) are important components in power management and control systems since they help provide system reset and system rollover protection. The STM795RM6F is an example of a supervisor integrated circuit which is optimized for low-power and linear applications such as systems consuming battery power or otherwise requiring high levels of efficiency. This article provides a overview of the application fields of the STM795RM6F and its working principle.

Application Fields

The STM795RM6F is a supervised integrated circuit (supervisor) intended solely for linear and low-power systems, such as portable and battery-powered devices. It is designed to provide system reset and rollover protection to improve device reliability and help prevent system malfunctions. The STM795RM6F provides robust undervoltage and overvoltage protection and a wide variety of reset configuration options. In addition, it offers a wide operating temperature range, with a -40°C to 125°C working temperature range and tolerates extreme temperatures between -45°C to 150°C.

The STM795RM6F is well suited for battery-powered or otherwise low-power applications due to its low supply current of only 0.1μA under no load. Furthermore, it offers a variety of protection features, such as reverse supply protection, over current protection, and power off reset. This makes it, to some extent, an excellent choice for applications requiring improved reliability and robustness.

The STM795RM6F is highly adaptable and configurable due to its variety of adjustable functions and parameters. It includes a selectable hysteresis and a selectable reset output time. It also supports reset active low and active high reset output, as well as reset delay modes. Moreover, it can be programmed with adjustable reset threshold values, ranging from zero volts to 5.5 volts.

Due to its low power requirement, configurability and adaptability the STM795RM6F can be used for a wide variety of applications, such as cell phones, tablets, GPS systems and other mobile or low-power applications.

Working Principle

The STM795RM6F works by monitoring the power supply voltage with respect to an adjustable threshold. When the threshold is exceeded, either by falling below the undervoltage threshold or rising above the overvoltage threshold, an internal comparator triggers the reset signal. This reset signal is usually used to reset the system or cause a system shutdown when the threshold is exceeded.

The STM795RM6F operates by monitoring both the positive and negative supply voltages of the system power supply. When either of these voltages exceeds a certain threshold, the comparator inside the supervisor triggers the reset signal. The thresholds are typically adjustable, and they can be set to any value between 0V-5.5V.

The reset output is also configurable. It can be configured to provide a pulse or an active low or active high signal. Depending on the configuration of the reset output, the reset signal can be used to reset the system or can instruct other components to shut down or enter a safe state to protect the system from damage.

The STM795RM6F also features some additional features that are designed to improve system performance and reliability. These features include power stabilisation, reverse supply protection, over current protection, and power off reset. These features are designed to help prevent system malfunctions by providing a safe and effective way of protecting the system from power-related issues.

Conclusion

The STM795RM6F is a supervised integrated circuit optimized for linear and low-power systems. It provides robust system reset and rollover protection and offers a wide operating temperature range. It is highly configurable and can be used for a variety of applications, such as cell phones, tablets, and other mobile or low-power systems. It works by monitoring the power supply voltage with respect to an adjustable threshold and provides reverse supply protection, over current protection and power off reset.

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