MCP121-450E/TO

Introduction

The MCP121-450E/TO is a voltage supervisor belonging to the category of integrated circuits. It is commonly used in electronic devices to monitor the power supply voltage and ensure proper operation. This entry provides an overview of its basic information, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.

Basic Information Overview

• Category: Integrated Circuits
• Use: Voltage supervision in electronic devices
• Characteristics: Monitors power supply voltage, ensures proper operation
• Package: TO-92
• Essence: Voltage supervisor
• Packaging/Quantity: Typically available in reels of 1000 units

Specifications

• Voltage Threshold: 4.50V
• Accuracy: ±2%
• Operating Temperature Range: -40°C to +85°C
• Supply Voltage: 1.0V to 5.5V
• Quiescent Current: 5µA (typical)

Detailed Pin Configuration

The MCP121-450E/TO has a standard TO-92 package with three pins: 1. VDD: Supply Voltage Input 2. GND: Ground Connection 3. RESET: Active-Low Reset Output

Functional Features

• Voltage Monitoring: Constantly monitors the supply voltage
• Reset Output: Provides an active-low reset signal when the voltage falls below the threshold
• Low Power Consumption: Consumes minimal quiescent current for energy efficiency

Advantages and Disadvantages

Advantages

• Reliable voltage monitoring
• Low power consumption
• Compact TO-92 package
• Wide operating temperature range

Disadvantages

• Fixed voltage threshold may not suit all applications
• Limited to monitoring single power supply voltage

Working Principles

The MCP121-450E/TO operates by comparing the supply voltage with the preset threshold. When the voltage drops below the threshold, the reset output is activated, signaling the connected system to reset or take appropriate action.

Detailed Application Field Plans

The MCP121-450E/TO finds extensive use in various electronic systems, including: - Microcontroller-based systems - Embedded systems - Power management circuits - Battery-powered devices - Industrial control systems

Detailed and Complete Alternative Models

Some alternative models to the MCP121-450E/TO include: - MAX809 - ADM811 - TPS3808 - DS1233

In conclusion, the MCP121-450E/TO is a reliable voltage supervisor with specific characteristics and applications. Its compact package and low power consumption make it suitable for diverse electronic systems, despite its fixed voltage threshold limitations.

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