MCP73838-FCI/MF

Product Overview

Category

The MCP73838-FCI/MF belongs to the category of battery charger ICs.

Use

This product is primarily used for charging single-cell lithium-ion (Li-Ion), lithium-polymer (Li-Po), and lithium iron phosphate (LiFePO4) batteries.

Characteristics

• The MCP73838-FCI/MF is a highly integrated solution for battery charging applications.
• It offers a compact size and low external component count, making it suitable for space-constrained designs.
• This IC provides various safety features such as thermal regulation, charge termination, and reverse battery protection.
• It supports multiple charging modes, including constant current (CC) and constant voltage (CV) charging.

Package

The MCP73838-FCI/MF is available in a small footprint 8-pin DFN (Dual Flat No-Lead) package.

Essence

The essence of this product lies in its ability to efficiently and safely charge lithium-ion batteries while offering a compact and integrated solution.

Packaging/Quantity

The MCP73838-FCI/MF is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Input Voltage Range: 4.5V to 6.0V
• Charge Current Range: Up to 1A
• Programmable Charge Termination Current
• Preconditioning Mode for Deeply Discharged Cells
• Automatic Recharge
• Battery Temperature Monitoring
• Thermal Regulation
• Reverse Battery Protection
• Under-Voltage Lockout (UVLO)
• Charge Status Output Pin

Detailed Pin Configuration

The MCP73838-FCI/MF has the following pin configuration:

1. VBAT - Battery Voltage Input
2. PROG - Charge Current Programming Pin
3. STAT - Charge Status Output Pin
4. PGND - Power Ground
5. VDD - Supply Voltage Input
6. TS - Battery Temperature Sense Input
7. CE - Charge Enable Input
8. VSS - Ground

Functional Features

• Constant Current (CC) Charging Mode
• Constant Voltage (CV) Charging Mode
• Programmable Charge Termination Current
• Preconditioning Mode for Deeply Discharged Cells
• Automatic Recharge
• Thermal Regulation to Prevent Overheating
• Reverse Battery Protection to Avoid Damage
• Under-Voltage Lockout (UVLO) for Enhanced Safety
• Charge Status Output Pin for Monitoring

Advantages and Disadvantages

Advantages

• Highly integrated solution with a low external component count
• Compact size suitable for space-constrained designs
• Multiple charging modes for flexibility
• Safety features ensure protection against overheating and reverse battery connection

Disadvantages

• Limited input voltage range of 4.5V to 6.0V
• Maximum charge current limited to 1A

Working Principles

The MCP73838-FCI/MF operates by regulating the charging current and voltage according to the selected charging mode. It monitors the battery temperature, ensuring safe charging conditions. The IC also provides various safety features such as reverse battery protection and under-voltage lockout.

Detailed Application Field Plans

The MCP73838-FCI/MF is widely used in 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 devices that require efficient and reliable charging capabilities.

Detailed and Complete Alternative Models

• MCP73831-FCI/MF
• MCP73832-FCI/MF
• MCP73833-FCI/MF
• MCP73837-FCI/MF

These alternative models offer similar functionality and characteristics, providing designers with options based on specific requirements.

In conclusion, the MCP73838-FCI/MF is a highly integrated battery charger IC designed for charging single-cell lithium-ion batteries. Its compact size, multiple charging modes, and safety features make it suitable for various portable electronic devices. However, it has limitations in terms of input voltage range and maximum charge current. Alternative models are available to cater to different design needs.