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BQ294711DSGT
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BQ294711DSGT

Product Overview

Category

BQ294711DSGT belongs to the category of integrated circuits (ICs).

Use

This product is commonly used for battery protection in various electronic devices.

Characteristics

  • Integrated circuit designed for battery protection
  • Provides overvoltage, undervoltage, and overcurrent protection
  • Offers accurate voltage and current monitoring capabilities
  • Enables safe and reliable operation of batteries in electronic devices

Package

BQ294711DSGT is available in a small form factor package, typically a surface mount device (SMD) package.

Essence

The essence of BQ294711DSGT lies in its ability to protect batteries from potential damage caused by overvoltage, undervoltage, and overcurrent conditions.

Packaging/Quantity

This product is usually packaged in reels or tubes, with a typical quantity of 2500 units per reel.

Specifications

  • Input Voltage Range: 2.5V to 18V
  • Overvoltage Protection Threshold: Adjustable, typically 4.2V to 4.4V
  • Undervoltage Protection Threshold: Adjustable, typically 2.5V to 3.0V
  • Overcurrent Protection Threshold: Adjustable, typically 1A to 10A
  • Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The BQ294711DSGT IC has the following pin configuration:

  1. VCC: Power supply input
  2. GND: Ground reference
  3. BAT: Battery connection
  4. OUT: Output for controlling external circuitry
  5. EN: Enable pin for enabling/disabling the protection features
  6. OV: Overvoltage protection threshold adjustment pin
  7. UV: Undervoltage protection threshold adjustment pin
  8. OC: Overcurrent protection threshold adjustment pin

Functional Features

  • Overvoltage Protection: Monitors the battery voltage and disconnects it from the load when it exceeds the set threshold.
  • Undervoltage Protection: Monitors the battery voltage and disconnects it from the load when it falls below the set threshold.
  • Overcurrent Protection: Monitors the current flowing through the battery and disconnects it from the load when it exceeds the set threshold.
  • Voltage and Current Monitoring: Provides accurate voltage and current measurements for monitoring battery performance.

Advantages and Disadvantages

Advantages

  • Effective protection against overvoltage, undervoltage, and overcurrent conditions
  • Accurate voltage and current monitoring capabilities
  • Compact size and surface mount package for easy integration into electronic devices

Disadvantages

  • Limited to specific battery voltage ranges
  • Requires careful adjustment of protection thresholds for optimal performance

Working Principles

BQ294711DSGT works based on a combination of voltage and current sensing techniques. It continuously monitors the battery voltage and current levels. When any of the protection thresholds are exceeded, the IC disconnects the battery from the load, preventing potential damage to the battery and the connected circuitry.

Detailed Application Field Plans

BQ294711DSGT is widely used in various applications where battery protection is crucial. Some common application fields include:

  1. Portable Electronics: Smartphones, tablets, laptops, and portable gaming devices.
  2. Power Tools: Cordless drills, saws, and other battery-powered tools.
  3. Electric Vehicles: Battery management systems for electric cars, bikes, and scooters.
  4. Renewable Energy Systems: Solar power storage systems and wind energy applications.
  5. Medical Devices: Portable medical equipment and patient monitoring devices.

Detailed and Complete Alternative Models

  1. BQ297311DSGT: Similar battery protection IC with extended voltage range.
  2. BQ294712DSGT: Higher current handling capability with adjustable protection thresholds.
  3. BQ294710DSGT: Lower voltage range for specialized applications.

These alternative models offer similar functionality and can be considered based on specific application requirements.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací BQ294711DSGT v technických řešeních

Sure! Here are 10 common questions and answers related to the application of BQ294711DSGT in technical solutions:

  1. Question: What is the BQ294711DSGT?
    Answer: The BQ294711DSGT is a battery protection and monitoring IC (Integrated Circuit) used in technical solutions.

  2. Question: What is the purpose of the BQ294711DSGT?
    Answer: The BQ294711DSGT is designed to protect and monitor lithium-ion batteries in various applications, ensuring safe and efficient operation.

  3. Question: What are the key features of the BQ294711DSGT?
    Answer: Some key features include overvoltage protection, undervoltage protection, short-circuit protection, overcurrent protection, and temperature monitoring.

  4. Question: How does the BQ294711DSGT provide overvoltage protection?
    Answer: The BQ294711DSGT monitors the voltage of the battery and disconnects it from the load if the voltage exceeds a predefined threshold, preventing damage to the battery.

  5. Question: Can the BQ294711DSGT handle multiple cells in series?
    Answer: Yes, the BQ294711DSGT can handle up to 4 cells in series, making it suitable for applications that require higher voltage levels.

  6. Question: Does the BQ294711DSGT have built-in temperature monitoring?
    Answer: Yes, the BQ294711DSGT has an integrated temperature sensor that allows for accurate monitoring of the battery's temperature.

  7. Question: How does the BQ294711DSGT provide short-circuit protection?
    Answer: The BQ294711DSGT detects excessive current flow caused by a short circuit and quickly disconnects the battery from the load to prevent further damage.

  8. Question: Can the BQ294711DSGT be used in automotive applications?
    Answer: Yes, the BQ294711DSGT is suitable for automotive applications as it meets the necessary safety and reliability standards.

  9. Question: Is the BQ294711DSGT programmable?
    Answer: No, the BQ294711DSGT does not have programmable features. It operates based on its predefined protection thresholds.

  10. Question: What are some typical applications of the BQ294711DSGT?
    Answer: The BQ294711DSGT is commonly used in power banks, electric vehicles, portable electronic devices, and other battery-powered systems that require protection and monitoring capabilities.

Please note that these answers are general and may vary depending on the specific implementation and requirements of the technical solution.