MCP73861T-I/SL

Introduction

The MCP73861T-I/SL is a specialized integrated circuit (IC) designed for battery charging applications. This device offers a range of features and specifications that make it suitable for various portable electronic devices.

Basic Information Overview

• Category: Battery Charging IC
• Use: Charging lithium-ion or lithium-polymer batteries
• Characteristics: Fast charge capability, thermal regulation, overvoltage protection
• Package: 8-Lead SOIC package
• Essence: Efficient and reliable battery charging solution
• Packaging/Quantity: Tape and reel packaging, available in various quantities

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
• Ambient Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MCP73861T-I/SL features an 8-pin configuration: 1. VSS - Ground 2. PROG - Charge current programming pin 3. STAT - Status output 4. CE - Charge enable input 5. TS - Thermal regulation input 6. VDD - Supply voltage input 7. VBAT - Battery voltage input 8. VSS - Ground

Functional Features

• Constant current/constant voltage operation
• Automatic recharging
• Thermal regulation and protection
• Charge status indication

Advantages and Disadvantages

Advantages

• Fast charge capability
• Compact SOIC package
• Overvoltage protection
• Wide ambient temperature range

Disadvantages

• Limited to lithium-ion and lithium-polymer batteries
• Requires external components for complete charging system

Working Principles

The MCP73861T-I/SL operates by providing a constant current to the connected battery until a predetermined voltage level is reached. It then switches to constant voltage mode until the charge current decreases to a specified termination level. The device also incorporates thermal regulation to ensure safe and efficient charging.

Detailed Application Field Plans

The MCP73861T-I/SL is ideal for use in various portable electronic devices such as smartphones, tablets, digital cameras, and portable media players. Its fast charge capability and compact package make it suitable for space-constrained designs.

Detailed and Complete Alternative Models

• MCP73831
• MCP73837
• MCP73871

In conclusion, the MCP73861T-I/SL is a versatile battery charging IC with a range of features and specifications that make it suitable for a variety of portable electronic devices. Its compact package and advanced functionality make it an ideal choice for modern battery-powered applications.

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