STM6524AUARDL6F Integrated Circuits (ICs)

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PMIC (Power Management Integrated Circuit) is a type of integrated circuit which is used in power management applications. One of the PMICs, the STM6524AUARDL6F, is designed to provide a robust monitoring system for efficient and reliable power management of various components. The STM6524AUARDL6F is a current-mode supervisor that provides flexible circuit protection, system monitoring, and other power management functions.

The STM6524AUARDL6F is suitable for use in a wide range of applications such as microcontrollers, embedded systems, IT equipment, and medical devices. It has a very low supply current of 1 µA and is rated to work over an operating temperature range of -40°C to +85°C. This makes it well-suited for use in low power and extended temperature operation.

Features

The STM6524AUARDL6F offers several functions for protection and monitoring of systems. These include an adjustable overvoltage comparator, an adjustable undervoltage comparator, a monitor output, an active debounce function, and an active hold-up function.

The adjustable overvoltage comparator monitors an input voltage for overvoltage events. When the input voltage exceeds the set threshold, the OVP comparator produces a logicLow output. This output can be connected to an interrupt or reset function, allowing for a safe and efficient shutoff of the system in case of an overvoltage event.

The adjustable undervoltage comparator monitors an input voltage for undervoltage events. When the input voltage drops below the set threshold, the UVP comparator produces a logicHigh output. This output can be connected to an interrupt or reset function, allowing for a safe and efficient shutoff of the system in case of an undervoltage event.

The monitor output is a logicHigh when the input voltage is within an acceptable range. This can be used to activate and deactivate other elements of the system, such as an automated shutdown function. The active debounce function prevents false triggering of an OVP or UVP event by using a programmable delay and counter. Finally, the active hold-up function prevents critical components from being reset due to a momentary power loss.

Applications

The STM6524AUARDL6F is suitable for use in a wide range of applications including automotive, industrial, and consumer electronics. It can be used as an input voltage monitoring device, as an over-current protection device, as a system monitoring device, or as an active hold-up device. Some possible applications include embedded systems, high-temperature systems, industrial equipment, automotive systems, and medical equipment.

Working Principle

The STM6524AUARDL6F uses a three-phase external current-mode feedback circuit to sense and control the input voltage. This circuit provides accurate measurement of the input voltage, as well as a well-defined voltage feedback loop. The feedback circuit senses changes in the input voltage and adjusts its own reference voltage accordingly. This allows the device to perform its various protections and monitoring functions.

The device has a wide range of programmable thresholds, allowing for great flexibility in protecting and monitoring various components. It also has an adjustable delay and counter, which can be used to prevent false triggering of OVP and UVP events. Finally, the active hold-up function ensures that critical components are not reset due to a momentary power loss.

Conclusion

The STM6524AUARDL6F is a robust current-mode supervisor designed for efficient and reliable power management of various components. It offers a wide range of features for protection and monitoring of systems, including adjustable overvoltage and undervoltage detectors, a monitor output, an active debounce function, and active hold-up protection. The device can be used in a variety of applications, such as microcontrollers, embedded systems, IT equipment, and medical devices. Finally, it uses a three-phase external current-mode feedback circuit to sense and control the input voltage, allowing it to accurately measure and control the input power supply.

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