BQ2057CDGKR

Introduction

The BQ2057CDGKR is a battery management IC designed for use in portable electronic devices. This entry provides an overview of the product, including its category, use, characteristics, package, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.

Basic Information Overview

• Category: Battery Management IC
• Use: Designed for use in portable electronic devices to manage battery charging and discharging.
• Characteristics: High efficiency, compact design, and advanced battery protection features.
• Package: DSBGA (Wafer Level Chip Scale Package)
• Essence: Efficient and reliable battery management for portable electronics.
• Packaging/Quantity: Available in tape and reel packaging with a quantity of 2500 units per reel.

Specifications

• Input Voltage Range: 4.5V to 28V
• Charge Current: Up to 2A
• Operating Temperature Range: -40°C to 85°C
• Battery Chemistry Support: Li-Ion, Li-Polymer
• Protection Features: Overvoltage protection, undervoltage lockout, thermal shutdown, and short-circuit protection

Detailed Pin Configuration

1. VBAT: Battery voltage input
2. TS: Temperature sense input
3. PROG: Charge current programming pin
4. STAT: Status output
5. CE: Charge enable input
6. GND: Ground
7. VCC: Power supply input
8. SRN: Serial interface enable input

Functional Features

• Integrated charge and discharge FET control
• Accurate voltage and current regulation
• Programmable charge current
• Battery temperature monitoring
• LED status indication
• Serial communication interface for configuration and monitoring

Advantages and Disadvantages

Advantages

• Compact wafer level chip scale package
• Comprehensive battery protection features
• High charge current capability
• Flexible charge current programming
• Integrated serial communication interface

Disadvantages

• Limited to specific battery chemistries (Li-Ion, Li-Polymer)
• May require external components for specific applications

Working Principles

The BQ2057CDGKR manages the charging and discharging of lithium-ion and lithium-polymer batteries in portable electronic devices. It regulates the charge current, monitors the battery temperature, and provides comprehensive protection against overvoltage, undervoltage, thermal events, and short circuits. The integrated FET control ensures efficient power transfer during charging and discharging, while the serial communication interface allows for flexible configuration and monitoring.

Detailed Application Field Plans

The BQ2057CDGKR is suitable for a wide range of portable electronic devices, including smartphones, tablets, portable media players, and handheld gaming devices. Its high charge current capability makes it ideal for fast-charging applications, while the comprehensive battery protection features ensure safe and reliable operation in various environments.

Detailed and Complete Alternative Models

• BQ2057T: Similar functionality with a different package (TSSOP)
• BQ2058: Enhanced features for higher charge current applications
• BQ2060: Multi-cell battery management IC with expanded capabilities

In conclusion, the BQ2057CDGKR is a versatile battery management IC designed for efficient and reliable battery management in portable electronic devices. With its compact design, advanced features, and comprehensive protection capabilities, it is well-suited for a wide range of applications in the consumer electronics market.

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