MCP120T-485I/TT

Product Overview

Category

The MCP120T-485I/TT belongs to the category of integrated circuits (ICs).

Use

This product is commonly used for voltage monitoring and reset functions in various electronic devices.

Characteristics

• Voltage monitoring: The MCP120T-485I/TT is designed to monitor the supply voltage of a system and provide a reset signal when the voltage falls below a certain threshold.
• Reset function: It ensures that the system is properly initialized after a power-on or brownout event.
• Low power consumption: The IC operates with low power requirements, making it suitable for battery-powered applications.
• Wide operating voltage range: It can operate within a wide range of supply voltages, typically from 1.6V to 6.0V.
• Small package size: The MCP120T-485I/TT is available in a compact SOT-23 package, which is ideal for space-constrained designs.
• RoHS compliant: This product meets the Restriction of Hazardous Substances directive, ensuring environmental friendliness.

Package and Quantity

The MCP120T-485I/TT is packaged in a Tape & Reel format, containing 3000 units per reel.

Specifications

• Supply Voltage Range: 1.6V to 6.0V
• Threshold Voltage Options: 2.63V, 3.08V, 4.38V, 4.63V
• Reset Timeout Period: 140ms (typical)
• Operating Temperature Range: -40°C to +85°C
• Quiescent Current: 5µA (typical)

Pin Configuration

The MCP120T-485I/TT has three pins:

1. VDD: Power supply input pin.
2. GND: Ground reference pin.
3. RESET: Output pin for the reset signal.

Functional Features

• Voltage monitoring: The MCP120T-485I/TT continuously monitors the supply voltage and compares it to a preset threshold.
• Reset signal generation: When the supply voltage falls below the threshold, the IC generates a reset signal on the RESET pin.
• Reset timeout: The reset signal remains active for a fixed period (140ms) after the supply voltage rises above the threshold, ensuring proper system initialization.

Advantages and Disadvantages

Advantages

• Reliable voltage monitoring and reset functionality.
• Low power consumption, suitable for battery-powered applications.
• Wide operating voltage range allows compatibility with various systems.
• Compact package size enables space-saving designs.
• RoHS compliant, environmentally friendly.

Disadvantages

• Limited threshold voltage options may not cover all voltage requirements.
• Fixed reset timeout period may not be adjustable for specific applications.

Working Principles

The MCP120T-485I/TT operates by comparing the supply voltage with a preset threshold voltage. When the supply voltage drops below the threshold, the IC triggers the reset signal, indicating a power-on or brownout event. The reset signal remains active for a fixed period, allowing the system to initialize properly. Once the supply voltage rises above the threshold, the reset signal is deactivated.

Application Field Plans

The MCP120T-485I/TT finds applications in various electronic devices that require reliable voltage monitoring and reset functions. Some potential application fields include:

1. Microcontrollers: Ensuring proper initialization and reliable operation of microcontroller-based systems.
2. Embedded Systems: Providing voltage monitoring and reset capabilities in embedded systems.
3. Industrial Control Systems: Enhancing the reliability of industrial control systems by monitoring power supply voltages.
4. Consumer Electronics: Incorporating voltage monitoring and reset features in consumer electronic devices for improved performance and stability.

Alternative Models

For users seeking alternative options, the following models provide similar functionality to the MCP120T-485I/TT:

1. MAX809: Manufactured by Maxim Integrated, this IC offers voltage monitoring and reset functions with adjustable threshold options.
2. TPS3808: Texas Instruments' IC provides voltage monitoring and reset features, along with adjustable timeout periods.
3. ADM6315: Analog Devices offers this IC with voltage monitoring and reset capabilities, suitable for a wide range of applications.

These alternative models can be considered based on specific requirements and design constraints.

In conclusion, the MCP120T-485I/TT is an integrated circuit designed for voltage monitoring and reset functions. Its compact size, low power consumption, and wide operating voltage range make it suitable for various electronic devices. While it has some limitations in terms of threshold voltage options and reset timeout period, it offers reliable performance and can be used in diverse application fields. Users also have alternative models available to meet their specific needs.