MCP73838-FJI/UN

Product Overview

The MCP73838-FJI/UN belongs to the category of battery management ICs and is commonly used for charging single-cell lithium-ion or lithium-polymer batteries. This integrated circuit offers characteristics such as high accuracy, small package size, and a range of protection features. The MCP73838-FJI/UN is available in a 20-pin QFN package and is typically sold in reels of 3000 units.

Specifications

• Input Voltage: 4.5V to 6.0V
• Charge Current: Up to 1A
• Preconditioning Current: 10% of the programmed maximum charge current
• Termination Current: 5% of the programmed maximum charge current
• Operating Temperature Range: -40°C to 85°C

Detailed Pin Configuration

The MCP73838-FJI/UN features a 20-pin QFN package with the following pin configuration: 1. VSS (Ground) 2. PROG (Charge Current Programming) 3. TS (Thermal Sense) 4. STAT1 (Charge Status Output) 5. STAT2 (Charge Status Output) 6. CE (Charge Enable) 7. PG (Power Good) 8. VDD (Supply Voltage) 9. BAT (Battery Connection) 10. VSS (Ground) 11. VSS (Ground) 12. VSS (Ground) 13. VSS (Ground) 14. VSS (Ground) 15. VSS (Ground) 16. VSS (Ground) 17. VSS (Ground) 18. VSS (Ground) 19. VSS (Ground) 20. VSS (Ground)

Functional Features

• Integrated Pass Transistor
• Automatic Recharge
• Thermal Regulation
• Battery Temperature Monitoring
• Charge Status Outputs

Advantages and Disadvantages

Advantages

• Small Package Size
• High Accuracy
• Comprehensive Protection Features
• Automatic Recharge Functionality

Disadvantages

• Limited to Single-Cell Battery Charging
• Relatively Narrow Operating Temperature Range

Working Principles

The MCP73838-FJI/UN operates by regulating the charge current and voltage to ensure safe and efficient charging of lithium-ion or lithium-polymer batteries. It incorporates thermal regulation and battery temperature monitoring to prevent overcharging and overheating, thereby enhancing battery safety and longevity.

Detailed Application Field Plans

The MCP73838-FJI/UN is widely used in portable electronic devices such as smartphones, tablets, and portable media players. Additionally, it finds application in handheld medical devices, portable instrumentation, and other battery-powered consumer electronics.

Detailed and Complete Alternative Models

• MCP73837: Similar functionality with a different package option
• MCP73831: Lower charge current capability but suitable for lower power applications
• BQ24075: Comparable single-cell battery charger with integrated pass transistor

This comprehensive entry provides detailed information about the MCP73838-FJI/UN, covering its product category, basic overview, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.