MCP120-475GI/TO

Product Overview

Category

The MCP120-475GI/TO belongs to the category of voltage supervisors.

Use

It is primarily used for monitoring and controlling the voltage levels in electronic circuits.

Characteristics

• The MCP120-475GI/TO is a low-power, microcontroller supervisory circuit.
• It operates at a supply voltage range of 1.0V to 5.5V.
• This device offers a reset output during power-up, power-down, and brownout conditions.
• It has a fixed threshold voltage of 4.75V.
• The MCP120-475GI/TO is available in a TO-92 package.

Package and Quantity

The MCP120-475GI/TO is packaged in a TO-92 package. Each package contains one unit of the product.

Specifications

• Supply Voltage Range: 1.0V to 5.5V
• Threshold Voltage: 4.75V (fixed)
• Operating Temperature Range: -40°C to +85°C
• Reset Timeout Period: 140ms (typical)

Pin Configuration

The MCP120-475GI/TO has three pins:

1. VDD: Power supply input pin.
2. GND: Ground reference pin.
3. RESET: Output pin that provides a reset signal to the microcontroller.

Functional Features

• Power-on Reset: The MCP120-475GI/TO generates a reset signal when the supply voltage rises above the threshold voltage.
• Brownout Reset: It monitors the supply voltage and generates a reset signal if it falls below the threshold voltage.
• Power-Down Reset: The device ensures a proper reset signal during power-down conditions.
• Low Power Consumption: The MCP120-475GI/TO operates with low quiescent current, making it suitable for battery-powered applications.

Advantages and Disadvantages

Advantages

• Provides reliable voltage monitoring and reset functionality.
• Low power consumption extends battery life in portable devices.
• Compact TO-92 package allows for easy integration into various circuit designs.

Disadvantages

• Fixed threshold voltage may not be suitable for all applications requiring different voltage levels.
• Limited timeout period may not be sufficient for certain system recovery scenarios.

Working Principles

The MCP120-475GI/TO operates by comparing the supply voltage with the fixed threshold voltage. When the supply voltage rises above the threshold, the reset output is activated, ensuring a proper reset signal to the microcontroller. Similarly, if the supply voltage falls below the threshold, a reset signal is generated to prevent erratic behavior of the microcontroller.

Application Field Plans

The MCP120-475GI/TO finds applications in various fields, including:

1. Embedded Systems: It ensures reliable operation and protection of microcontrollers in embedded systems.
2. Industrial Automation: The device provides voltage supervision in industrial automation equipment, preventing malfunctions due to unstable power supply.
3. Automotive Electronics: It is used in automotive electronics to monitor voltage levels and ensure proper functioning of critical systems.
4. Consumer Electronics: The MCP120-475GI/TO enhances the reliability of consumer electronic devices by providing voltage monitoring and reset capabilities.

Alternative Models

1. MCP120-300GI/TO: This model has a lower threshold voltage of 3.0V, suitable for applications requiring a different voltage level.
2. MCP120-500GI/TO: With a higher threshold voltage of 5.0V, this model offers an alternative for specific voltage monitoring requirements.
3. MCP120-275GI/TO: This model features a lower threshold voltage of 2.75V, catering to applications with lower voltage tolerances.

These alternative models provide flexibility in voltage monitoring based on specific application needs.

In conclusion, the MCP120-475GI/TO is a voltage supervisor circuit that offers reliable voltage monitoring and reset functionality. Its low power consumption, compact package, and wide operating voltage range make it suitable for various applications in different fields.