MCP112T-450E/LB

Product Overview

Category

The MCP112T-450E/LB belongs to the category of electronic components.

Use

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

Characteristics

• Voltage monitoring: The MCP112T-450E/LB is designed to monitor the supply voltage and provide a reset signal when it falls below a certain threshold.
• Reset function: It ensures that the microcontroller or other digital circuitry starts in a known state after power-up or brownout conditions.
• Low power consumption: The device operates with low quiescent current, making it suitable for battery-powered applications.
• Wide operating voltage range: It can operate within a wide voltage range, typically from 1.6V to 5.5V.
• Small package size: The MCP112T-450E/LB is available in a compact SOT-23 package, which makes it suitable for space-constrained designs.

Package and Quantity

The MCP112T-450E/LB is packaged in a SOT-23 package. It is typically sold in reels containing a specified quantity of units, such as 3000 pieces per reel.

Specifications

• Supply Voltage Range: 1.6V to 5.5V
• Reset Threshold Voltage: 4.50V (typical)
• Reset Timeout Period: 140ms (typical)
• Quiescent Current: 1.0µA (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MCP112T-450E/LB has three pins:

1. VDD: This pin is connected to the positive supply voltage.
2. GND: This pin is connected to the ground or negative supply voltage.
3. RESET: This pin provides the reset signal to the microcontroller or digital circuitry.

Functional Features

• Voltage Monitoring: The MCP112T-450E/LB continuously monitors the supply voltage and compares it with the preset threshold voltage.
• Reset Signal Generation: When the supply voltage falls below the threshold, the device generates a reset signal to ensure a controlled restart of the microcontroller or digital circuitry.
• Reset Timeout: The MCP112T-450E/LB includes a built-in timeout period to prevent false resets during power-up transients or temporary voltage fluctuations.
• Low Power Consumption: The device operates with low quiescent current, minimizing power consumption in battery-powered applications.

Advantages and Disadvantages

Advantages

• Accurate voltage monitoring and reset functionality.
• Wide operating voltage range allows for versatile application.
• Compact package size enables space-saving designs.
• Low power consumption extends battery life.

Disadvantages

• Limited reset timeout period may not be suitable for certain applications requiring longer timeouts.
• Single threshold voltage may not cater to all voltage monitoring requirements.

Working Principles

The MCP112T-450E/LB utilizes an internal voltage reference and comparator to monitor the supply voltage. When the voltage drops below the preset threshold, the device triggers a reset signal. The reset signal remains active until the supply voltage rises above the threshold and the built-in timeout period elapses.

Detailed Application Field Plans

The MCP112T-450E/LB finds applications in various electronic systems, including but not limited to: - Microcontroller-based systems - Embedded systems - Battery-powered devices - Industrial control systems - Automotive electronics - Consumer electronics

Alternative Models

Below are some alternative models that offer similar functionality: - MCP100: Offers adjustable reset threshold voltage. - MCP131: Provides additional features like watchdog timer and manual reset input. - MAX809: Offers a wide range of reset timeout periods.

These alternative models can be considered based on specific application requirements and desired features.

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