MCP73837-FCI/UN

Introduction

The MCP73837-FCI/UN is a specialized integrated circuit (IC) designed for battery charging applications. This entry provides an overview of the product, including its basic information, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.

Basic Information Overview

• Category: Battery Charging IC
• Use: The MCP73837-FCI/UN is used for managing and controlling the charging process of rechargeable batteries.
• Characteristics: It features precision voltage regulation, charge status indication, and thermal regulation for safe and efficient battery charging.
• Package: The MCP73837-FCI/UN is available in various package options, such as QFN and TSSOP.
• Essence: The essence of this IC lies in its ability to provide a reliable and efficient charging solution for various battery types.
• Packaging/Quantity: The IC is typically supplied in tape and reel packaging with varying quantities based on customer requirements.

Specifications

• Input Voltage: 4.5V to 6.0V
• Charge Current: Up to 1A
• Termination Current: 10% of the programmed maximum charge current
• Operating Temperature Range: -40°C to 85°C
• Battery Recharge Threshold: 3.9V
• Preconditioning: Trickle charge with automatic recharge

Detailed Pin Configuration

The MCP73837-FCI/UN features a standard pin configuration with designated pins for input power, battery connection, status indicators, and control signals. The detailed pinout is as follows: 1. VDD – Input Power 2. TS – Thermal Regulation 3. PROG – Charge Current Programming 4. STAT – Charge Status Indicator 5. PGND – Power Ground 6. CE – Charge Enable 7. BAT – Battery Connection 8. VSS – System Ground

Functional Features

• Precision Voltage Regulation: Ensures accurate and safe charging of batteries.
• Charge Status Indication: Provides visual feedback on the charging process.
• Thermal Regulation: Prevents overheating during charging, enhancing safety.
• Automatic Recharge: Initiates recharging when the battery voltage drops below a predefined threshold.

Advantages and Disadvantages

Advantages

• Efficient and precise charging control
• Compact form factor
• Wide operating temperature range
• Automatic recharge feature enhances battery life

Disadvantages

• Limited to specific battery chemistries
• May require external components for certain configurations

Working Principles

The MCP73837-FCI/UN operates by regulating the charging current and voltage to ensure the safe and efficient charging of batteries. It monitors the battery status and adjusts the charging parameters accordingly, providing a controlled and optimized charging process.

Detailed Application Field Plans

The MCP73837-FCI/UN is suitable for a wide range of applications, including: - Portable electronic devices - Battery-powered tools and equipment - IoT devices - Medical devices - Automotive systems

Detailed and Complete Alternative Models

• MCP73831: Similar functionality with different package options
• MCP73833: Enhanced thermal regulation and charge termination features
• MCP73871: Higher charge current capability for faster charging

In conclusion, the MCP73837-FCI/UN is a versatile and reliable battery charging IC that offers precise control and safety features for various battery charging applications.

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