Texas Instruments
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BQ29700DSER
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BQ29700DSER

Introduction

The BQ29700DSER is a voltage protection device designed for use in battery management systems. This device offers essential features to ensure the safety and longevity of batteries in various applications.

Basic Information Overview

  • Category: Battery Management System Component
  • Use: Voltage Protection
  • Characteristics: Overvoltage and Undervoltage Protection, Precision Voltage Monitoring
  • Package: DSBGA (Wafer Chip Scale Package)
  • Essence: Ensuring Battery Safety and Longevity
  • Packaging/Quantity: Available in Tape and Reel Packaging

Specifications

  • Operating Voltage Range: 2.7V to 18V
  • Overvoltage Threshold Accuracy: ±0.75%
  • Undervoltage Threshold Accuracy: ±1%
  • Quiescent Current: 6µA (typical)

Detailed Pin Configuration

The BQ29700DSER features a detailed pin configuration with specific functions assigned to each pin, ensuring seamless integration into battery management systems.

Functional Features

  • Overvoltage Protection: Monitors and protects against excessive voltage levels.
  • Undervoltage Protection: Safeguards against excessively low voltage conditions.
  • Precision Voltage Monitoring: Provides accurate voltage measurement for enhanced battery management.

Advantages and Disadvantages

Advantages: - Enhanced Battery Safety - Precision Voltage Monitoring - Wide Operating Voltage Range

Disadvantages: - Limited to DSBGA Package - May Require Additional Components for Full Battery Management Functionality

Working Principles

The BQ29700DSER operates by continuously monitoring the battery voltage and activating protection mechanisms when voltage levels exceed or fall below predefined thresholds. This proactive approach ensures the safety and reliability of the connected battery.

Detailed Application Field Plans

This device is suitable for a wide range of applications including: - Portable Electronics - Electric Vehicles - Energy Storage Systems

Detailed and Complete Alternative Models

  • BQ29701: Similar functionality with different package options.
  • BQ29702: Enhanced features for more complex battery management requirements.

In conclusion, the BQ29700DSER plays a crucial role in safeguarding batteries from harmful voltage conditions, making it an essential component in modern battery management systems.

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Перелічіть 10 типових запитань і відповідей, пов’язаних із застосуванням BQ29700DSER у технічних рішеннях

  1. What is the BQ29700DSER?

    • The BQ29700DSER is a battery protection integrated circuit designed to protect single-cell Li-ion or Li-polymer batteries from overcharge, over-discharge, and overcurrent conditions.

  2. What is the maximum voltage rating of the BQ29700DSER?

    • The BQ29700DSER has a maximum voltage rating of 28V, making it suitable for various single-cell battery applications.

  3. How does the BQ29700DSER protect against overcharge?

    • The BQ29700DSER uses an internal FET to disconnect the battery from the charging source when the voltage exceeds the overcharge threshold.

  4. Can the BQ29700DSER handle high discharge currents?

    • Yes, the BQ29700DSER is capable of handling high discharge currents, making it suitable for power tool and e-bike applications.

  5. What are the key features of the BQ29700DSER?

    • Some key features of the BQ29700DSER include overcharge protection, over-discharge protection, short-circuit protection, and thermal shutdown.

  6. Is the BQ29700DSER suitable for automotive applications?

    • Yes, the BQ29700DSER is AEC-Q100 qualified, making it suitable for automotive applications where robustness and reliability are essential.

  7. What is the typical quiescent current of the BQ29700DSER?

    • The typical quiescent current of the BQ29700DSER is very low, which helps minimize power consumption in battery-powered devices.

  8. Can the BQ29700DSER be used in conjunction with a microcontroller?

    • Yes, the BQ29700DSER features an I2C interface, allowing it to communicate with a microcontroller for monitoring and control purposes.

  9. Does the BQ29700DSER support battery pack balancing?

    • No, the BQ29700DSER does not support battery pack balancing. It is primarily focused on protection functions.

  10. What are some typical applications for the BQ29700DSER?

    • Typical applications for the BQ29700DSER include power tools, e-bikes, portable medical devices, and other single-cell battery-powered systems requiring protection against overcharge and over-discharge.