MCP73842-840I/UN

Introduction

The MCP73842-840I/UN 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 the electronics industry.

Basic Information Overview

• Category: Battery Management and Charging IC
• Use: Charging and managing rechargeable batteries
• Characteristics: Fast charging, thermal regulation, overvoltage protection
• Package: 20-Lead QFN (Quad Flat No-Lead)
• Essence: Efficient and reliable battery charging and management
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Input Voltage: 4.5V to 6.0V
• Charge Current: Up to 1A
• Termination Current: 10% of the programmed charge current
• Preconditioning: Trickle charge with automatic recharge
• Charge Termination: C/10 or 1/10th the programmed charge current
• Ambient Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MCP73842-840I/UN features a 20-pin QFN package with specific pin assignments for input voltage, ground, charge status indicators, and battery connections. The detailed pin configuration can be found in the product datasheet.

Functional Features

• Integrated pass transistor
• Automatic recharging
• Thermal regulation
• Charge status indicators
• Programmable charge current

Advantages and Disadvantages

Advantages - Fast charging capability - Thermal regulation for safe operation - Compact QFN package - Programmable charge current for flexibility

Disadvantages - Limited to a maximum input voltage of 6.0V - Requires careful PCB layout for optimal performance

Working Principles

The MCP73842-840I/UN operates by regulating the charging current and voltage to ensure safe and efficient charging of rechargeable batteries. It incorporates thermal regulation to prevent overheating and provides charge status indicators for user feedback.

Detailed Application Field Plans

This IC is suitable for a wide range of applications including portable electronic devices, power banks, wireless peripherals, and handheld instruments. Its fast charging capability and compact package make it ideal for space-constrained designs.

Detailed and Complete Alternative Models

• MCP73831
• MCP73837
• MCP73871

In conclusion, the MCP73842-840I/UN is a versatile battery management and charging IC with a range of features and characteristics that make it well-suited for various electronic applications.

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