MCP73871T-4CCI/ML

Introduction

The MCP73871T-4CCI/ML is a specialized integrated circuit (IC) belonging to the category of battery management and charging solutions. This device offers a range of features and characteristics that make it suitable for various applications in portable electronic devices.

Basic Information Overview

• Category: Battery Management and Charging IC
• Use: Charging and managing lithium-ion or lithium-polymer batteries in portable electronic devices
• Characteristics: Fast charge capability, thermal regulation, input voltage regulation, automatic recharging, and safety features
• Package: 20-Lead QFN package
• Essence: Efficient and reliable battery charging and management
• Packaging/Quantity: Available in tape and reel packaging with quantities as per customer requirements

Specifications

• Input Voltage: 4.5V to 6.0V
• Charge Current: Programmable up to 1A
• Preconditioning Current: 10% of programmed current
• Termination Current: 5% of programmed current
• Operating Temperature Range: -40°C to +85°C
• Thermal Regulation: Yes
• Charge Status Output: Yes
• Safety Features: Over-temperature protection, reverse discharge protection, and automatic recharge

Detailed Pin Configuration

The MCP73871T-4CCI/ML features a 20-pin QFN package with specific pin configurations for input power, battery connections, status indicators, and control signals. The detailed pin configuration can be found in the product datasheet.

Functional Features

• Fast Charge Capability: Enables rapid charging of lithium-ion or lithium-polymer batteries
• Thermal Regulation: Ensures safe operation by regulating the temperature during charging
• Automatic Recharging: Automatically restarts the charging process if the battery voltage drops below a certain threshold
• Input Voltage Regulation: Maintains stable operation even with varying input voltages
• Charge Status Output: Provides an indication of the charging status for external monitoring

Advantages and Disadvantages

Advantages

• Fast charging capability reduces charging time for portable devices
• Thermal regulation enhances safety during the charging process
• Automatic recharging feature ensures continuous availability of charged batteries
• Input voltage regulation allows for flexibility in power supply sources

Disadvantages

• Limited to lithium-ion and lithium-polymer battery types
• May require additional circuitry for specific application requirements

Working Principles

The MCP73871T-4CCI/ML operates by regulating the charging current and voltage to ensure efficient and safe charging of lithium-ion or lithium-polymer batteries. It monitors the battery status and temperature to adjust the charging parameters and provides necessary safety features to prevent overcharging or overheating.

Detailed Application Field Plans

The MCP73871T-4CCI/ML is well-suited for a wide range of portable electronic devices, including smartphones, tablets, portable media players, and handheld gaming devices. Its fast charge capability and safety features make it ideal for applications where quick and reliable battery charging is essential.

Detailed and Complete Alternative Models

• MCP73831: Similar functionality with lower charge current capability
• MCP73837: Enhanced thermal regulation and charge termination features
• BQ24075: Alternative solution from another manufacturer with comparable features

In conclusion, the MCP73871T-4CCI/ML offers a comprehensive solution for charging and managing lithium-ion and lithium-polymer batteries in portable electronic devices. With its advanced features and flexible application, it serves as a reliable choice for various battery management needs.

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