MCP111T-450E/MB

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PMIC (Power Management Integrated Circuits), also known as Power Management ICs, are chips used to regulate electrical current to electronic circuits. They provide operating voltage to the circuit and ensure safe operation. Supervisors are special chips mainly designed to ensure that every microcontroller, FPGA, ASIC, etc. will stay in their expected functioning range. The MCP111T-450E/MB is a PMIC supervisor device used to monitor the power rail of systems on chips (SoC).

MCP111T-450E/MB is mainly used to monitor one voltage level of the system. It includes an adjustable voltage monitor and reset generator with a windowed watchdog timer. The watchdog timer is activated after the reset generator is triggered, which will give a reset to the system if the voltage level is still abnormal within a predefined time. Moreover, the reset can also be generated manually. MCP111T-450E/MB is designed to replace an external voltage monitor, reset generator and watchdog timer, providing an improved way to monitor the voltage level and protect system from over-voltage and power-down situations. The MCP111T-450E/MB is an ideal choice for low power system designs due to its low operating current (only 9μA) and 12nA/V output current.

MCP111T-450E/MB is widely used in various types of applications to monitor voltage level fluctuation and overvoltage protection. Common application areas include server and storage systems, communication systems, peripheral cards and embedded systems. It is mainly used in the protection of memory circuits, processors, and I/O signaling systems.

The MCP111T-450E/MB is a highly integrated supervisor device with a wide functional range of features. It is composed of three main parts: the power supply regulator, voltage monitor, and reset generator. The power supply regulator takes the input voltage, adjusts it to the nominal voltage, and feeds it to the voltage monitor. The voltage monitor then performs a comparison between the adjusted voltage supplied to it and a reference voltage. If the voltage deviation is outside the predefined window, the voltage monitor will trigger the reset generator, which will reset the system.

Furthermore, the MCP111T-450E/MB provides a windowed watchdog timer, which can be used to ensure correct system operation. The watchdog timer is activated when the voltage monitoring circuit triggers the reset generator. If the voltage has not returned to normal after a certain delay, the watchdog timer will reset the system. This prevents the system from running in an unexpected state due to sustained abnormal voltage levels.

Overall, MCP111T-450E/MB is a rugged and cost-efficient power management integrated circuit for over-voltage and power-down protection. It is designed to provide reliable overvoltage monitoring, resetting and watchdog timer functions, and it is easy to integrate into embedded systems. With its wide functional range and low power consumption, MCP111T-450E/MB is ideal for a variety of applications including server and storage systems, communication systems, peripheral cards and embedded systems.

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