TC1271ARCVCTTR

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Power management integrated circuits (PMICs) are an important component in mobile, consumer and industrial computing applications. They are responsible for managing the power supply in various applications, making it easier to control and optimize the power supply.Supervisors are a type of PMICs, which are designed to protect a circuit from unintended operations due to unexpected power anomalies. The TC1271ARCVCTTR is a 3.3V supervisor that is suitable for use in mobile and industrial applications. It provides overvoltage protection, time delay for reset, manual reset capability and a sonalert or beeper for protection against undervoltage.

More specifically, the TC1271ARCVCTTR is a real-time voltage supervisor with an adjustable reset threshold and an adjustable reset time delay. It features a low supply current reduction through a selectable I/O output slope and a hysteresis window. It also has an internal power-on reset circuit that ensures reliable power-on state of the supervisor. The reset output of the TC1271ARCVCTTR is user selectable between an active low open drain output or an active high push/pull output. This supervisor also features an inrush current limiting output, which is enabled by the Hypercharge Inrush Limiting (HIL) pin.

The TC1271ARCVCTTR is ideal for monitoring battery systems, processor and MCU core supply voltages, and other power management applications in mobile and industrial applications. It provides a reliable and configurable reset solution for circuits that require local power fail detection and protection. The device also has built in noise filter, which helps filter and minimize noise on the reset output, ensuring reliable functionality.

The working principle of the TC1271ARCVCTTR is as follows: The supervisor monitors an external power supply voltage, typically 3.3V, and then compares it against a preset threshold level. If the supplied voltage is equal to or above the threshold level, the device will keep its output low. If the supplied voltage is lower than the threshold level, the device will drive its output high. This output is used to assertion the reset pin of a microcontroller, thus resetting its internal registers and resetting the system.

The TC1271ARCVCTTR also features a user adjustable delay timer, which can be set to any predetermined value. When the output is asserted, the delay timer starts counting from the time that the output is asserted until the time when the output is deasserted. This ensures that all of the system registers and functions have been reset before the device releases the microcontroller from reset.

In addition to providing reliable reset protection, the TC1271ARCVCTTR also offers an active inrush current limitation feature. Hypercharge Inrush Limiting (HIL) can be used to limit the current during system power-up and power-down. This feature provides a safe power-one reset circuit that prevents damage to the system\'s power components due to unexpected and unwanted inrush currents.

The TC1271ARCVCTTR is an effectively designed power management integrated circuit designed specifically to provide reliable reset protection in mobile and industrial applications. Its adjustable reset threshold and adjustable reset time delay make it an ideal solution for these applications. Last but not least, its built-in noise filter and Hypercharge Inrush Limiting (HIL) feature ensures reliable protection of the system\'s components against unwanted and unexpected power anomalies.

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