BQ25895RTWR

Introduction

The BQ25895RTWR is a highly integrated switch-mode battery charge management and system power path management device for single-cell Li-Ion and Li-polymer batteries. This device offers a wide range of features and capabilities, making it suitable for various applications.

Basic Information Overview

• Category: Battery Charge Management and System Power Path Management Device
• Use: Charging and managing single-cell Li-Ion and Li-polymer batteries
• Characteristics: Highly integrated, switch-mode operation, wide input voltage range, programmable settings
• Package: 24-pin VQFN package
• Essence: Efficient and flexible battery charging and power path management
• Packaging/Quantity: Available in tape and reel packaging, quantity varies based on order size

Specifications

• Input Voltage Range: 3.9V to 14V
• Charge Voltage: Up to 4.7V
• Maximum Charge Current: 3A
• Operating Temperature Range: -40°C to 85°C
• Integrated FETs: Yes
• I2C Interface: Yes
• Thermal Regulation: Yes
• Battery Detection: Yes

Detailed Pin Configuration

1. VIN
2. TS
3. PROG
4. BAT
5. PGND
6. SYS
7. STAT
8. INT
9. TS
10. TS
11. TS
12. TS
13. TS
14. TS
15. TS
16. TS
17. TS
18. TS
19. TS
20. TS
21. TS
22. TS
23. TS
24. TS

Functional Features

• Integrated power FETs for up to 3A charging
• Flexible input voltage and current limit settings
• Dynamic power path management
• Battery detection and thermal regulation
• I2C interface for programmability and monitoring

Advantages and Disadvantages

Advantages

• High level of integration
• Wide input voltage range
• Programmable settings for flexibility
• Efficient power path management

Disadvantages

• Requires careful PCB layout due to high switching frequencies
• May require external components for specific applications

Working Principles

The BQ25895RTWR operates by efficiently managing the charging of single-cell Li-Ion and Li-polymer batteries while also providing a power path for system operation. It utilizes integrated FETs and programmable settings to optimize charging and power delivery based on the input voltage and current limits.

Detailed Application Field Plans

The BQ25895RTWR is well-suited for a wide range of portable and handheld devices, including smartphones, tablets, portable medical devices, and wearable electronics. Its flexible input voltage range and programmable settings make it adaptable to various power sources and battery configurations.

Detailed and Complete Alternative Models

• BQ25892RTWR: Similar functionality with lower charge current capability
• BQ25898RTWR: Higher charge current capability with similar features
• BQ25896RTWR: Enhanced thermal regulation and monitoring capabilities

This comprehensive entry provides an in-depth understanding of the BQ25895RTWR, covering its specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.