MCP130T-300I/SN

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The MCP130T-300I/SN is an advanced version of the popular MCP130Supervisor family. This Pre-Diagnostics Supervisory Circuit from Microchip Technology is designed to provide a printed circuit board with power-on reset (POR) and power supply supervisor functions.

The MCP130T-300I/SN offers superior system performance, ease of use, and reliability in a miniature SOT-23 package. It provides monitoring of three major system supplies: +3.3V, +2.0V and ±1.0V. This includes two adjustable voltage thresholds (Vth) with an active-high reset output, one watchdog timer (WTD) with an active-low reset output, and a system power monitor (SPM) with an active-low reset output.

This product type offers high-accuracy voltage monitoring and temperature range of -40°C to +125°C for reliable reliable operation in a variety of harsh environments. This type of supervisor does provide active power-on reset, watchdog timer and system power monitor for a complete system reset and supply monitoring.

The internal circuitry of the MCP130T-300I/SN is designed to provide high accuracy and low current consumption while maintaining a high degree of thermal stability. This includes an Internal Reference Voltage (VREF) which is provided to the POR and WTD inputs to accurately define their thresholds. The trip point adjustability is accomplished by connecting external resistors to the trip point control pins. An internal temperature compensating circuit reduces the effects of temperature variations on the reference voltage, ensuring reliable operation over a wide range of temperatures.

The MCP130T-300I/SN is ideal for applications requiring a reliable monitoring of power supply voltages with a high degree of accuracy. It is typically used in computers, telecommunication, industrial control, instrumentation, and automotive applications. Typical applications are microprocessor-based systems, including CPUs, DSPs, and microcontrollers.

In operation, When any of the internal monitored voltage levels exceed their respective thresholds, the active-high reset output (POR) is asserted. All reset sources are latched internally, meaning that the POR pin is asserted until the power is cycled. Similarly, the watchdog timer is constantly monitored, and when its timeout period is exceeded, the active-low reset is asserted until the power is cycled.

The system power monitor constantly monitors the power-on status of the monitored supply and when it is determined to be out of spec, the active-low reset signal is asserted until the power is recycled.

The overall accuracy of the MCP130T-300I/SN is ±1.5% of the internally programmed threshold voltages from -40°C to +125°C. The available POR/WTD/SPM monitoring voltage thresholds range from 2.4V to 5.5V. This type of supervisor does provide active power-on reset, watchdog timer and system power monitor for a complete system reset and supply monitoring.

In conclusion, the MCP130T-300I/SN is an advanced version of the popular MCP130Supervisor family and is ideal for applications requiring a reliable monitoring of power supply voltages with a high degree of accuracy. This supervisor provides high-accuracy voltage monitoring and temperature range of -40°C to +125°C for reliable reliable operation in a variety of conditions, as well as offering superior system performance, ease of use and reliability in a miniature SOT-23 package.

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