MCP73871T-2CCI/ML

Product Overview

Category

The MCP73871T-2CCI/ML belongs to the category of battery charger ICs.

Use

This product is primarily used for charging single-cell lithium-ion or lithium-polymer batteries.

Characteristics

• The MCP73871T-2CCI/ML is a highly integrated solution for battery charging applications.
• It offers a compact and efficient charging solution with minimal external components required.
• This IC provides various safety features, such as thermal regulation, charge termination, and overvoltage protection.
• It supports multiple charging modes, including constant current, constant voltage, and preconditioning.

Package

The MCP73871T-2CCI/ML is available in a small 10-pin DFN package.

Essence

The essence of this product lies in its ability to provide a reliable and efficient charging solution for lithium-ion and lithium-polymer batteries.

Packaging/Quantity

The MCP73871T-2CCI/ML is typically packaged in reels and is available in quantities suitable for both prototyping and mass production.

Specifications

• Input Voltage Range: 4.5V to 6.0V
• Charging Current Range: Up to 1.5A
• Programmable Charge Termination Current
• Preconditioning Mode Current: Up to 250mA
• Thermal Regulation
• Overvoltage Protection
• Under Voltage Lockout (UVLO)
• Battery Temperature Monitoring

Detailed Pin Configuration

The MCP73871T-2CCI/ML has the following pin configuration:

1. VBAT - Battery Voltage Input
2. PROG - Charge Termination Current Programming Pin
3. STAT - Status Output Pin
4. PGND - Power Ground
5. THERM - Battery Temperature Monitor Input
6. TS - Thermal Shutdown Output
7. VDD - Supply Voltage Input
8. CE - Charge Enable Input
9. STAT2 - Status Output Pin
10. VSS - Ground

Functional Features

• Constant Current and Constant Voltage Charging Modes
• Programmable Charge Termination Current
• Preconditioning Mode for Deeply Discharged Batteries
• Thermal Regulation to Prevent Overheating
• Overvoltage Protection to Safeguard the Battery
• Under Voltage Lockout (UVLO) for Enhanced Safety
• Battery Temperature Monitoring for Optimal Charging

Advantages and Disadvantages

Advantages

• Highly integrated solution, requiring minimal external components
• Supports multiple charging modes for versatile applications
• Offers various safety features for reliable battery charging
• Compact package size for space-constrained designs

Disadvantages

• Limited input voltage range (4.5V to 6.0V)
• Maximum charging current limited to 1.5A

Working Principles

The MCP73871T-2CCI/ML operates by regulating the charging current and voltage to ensure safe and efficient charging of lithium-ion or lithium-polymer batteries. It employs a combination of constant current and constant voltage charging modes, along with programmable charge termination current, to achieve optimal charging performance. The IC also incorporates thermal regulation, overvoltage protection, under voltage lockout, and battery temperature monitoring to enhance safety during the charging process.

Detailed Application Field Plans

The MCP73871T-2CCI/ML is widely used in various portable electronic devices, such as smartphones, tablets, digital cameras, and portable gaming consoles. It is also employed in power banks, wireless headphones, and other battery-powered consumer electronics. Additionally, this IC finds applications in industrial equipment, medical devices, and automotive systems that rely on rechargeable lithium-ion or lithium-polymer batteries.

Detailed and Complete Alternative Models

• MCP73831T-2ATI/OT: Similar functionality with a lower charging current capability (up to 500mA).
• MCP73833T-2ACI/OT: Similar functionality with a higher charging current capability (up to 1A).
• MCP73844T-2CCI/OT: Similar functionality with additional USB On-The-Go (OTG) support.

These alternative models provide similar features and can be considered based on specific application requirements.

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