MCP120-485HI/TO

Product Overview

Category

The MCP120-485HI/TO belongs to the category of integrated circuits (ICs).

Use

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

Characteristics

• Voltage monitoring: The MCP120-485HI/TO is designed to monitor the voltage level of a power supply and provide a reset signal when the voltage falls below a certain threshold.
• Reset function: It ensures that the microcontroller or other digital circuitry starts operating correctly after power-up or a voltage drop.
• Low power consumption: The MCP120-485HI/TO is designed to consume minimal power, making it suitable for battery-powered applications.
• Wide operating voltage range: It can operate within a wide voltage range, typically from 1.6V to 6.0V.
• Small package size: This IC is available in a TO-92 package, which is compact and easy to integrate into various electronic designs.

Package and Quantity

The MCP120-485HI/TO is packaged in a TO-92 package. Each package contains one unit of the IC.

Specifications

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

Pin Configuration

The MCP120-485HI/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 connected circuitry.

Functional Features

1. Voltage Monitoring: The MCP120-485HI/TO continuously monitors the supply voltage and compares it to the preset threshold voltage.
2. Reset Signal Generation: When the supply voltage falls below the threshold voltage, the MCP120-485HI/TO generates a reset signal on the RESET pin.
3. Reset Timeout: The IC includes an internal timer that ensures the reset signal remains active for a specific period (140ms typical) after the voltage rises above the threshold.

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 TO-92 package for easy integration.

Disadvantages

• Limited reset timeout options.
• May not be suitable for applications requiring precise voltage monitoring.

Working Principles

The MCP120-485HI/TO operates by comparing the supply voltage with the preset threshold voltage. When the supply voltage drops below the threshold, the IC generates a reset signal. This signal remains active for a specific period, ensuring proper system initialization after power-up or voltage drop.

Application Field Plans

The MCP120-485HI/TO finds applications in various electronic devices where reliable voltage monitoring and reset functions are required. Some potential application fields include:

1. Microcontroller-based systems
2. Embedded systems
3. Power management circuits
4. Battery-powered devices
5. Industrial control systems

Alternative Models

Below are some alternative models that offer similar functionality:

1. MAX809: Manufactured by Maxim Integrated, this IC provides voltage monitoring and reset functions.
2. ADM708: Produced by Analog Devices, it offers voltage monitoring and reset capabilities.
3. TPS3808: Texas Instruments manufactures this IC, which provides voltage monitoring and reset features.

These alternative models can be considered based on specific requirements and compatibility with the target application.

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