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BQ7692000PW
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BQ7692000PW - English Editing Encyclopedia Entry

Product Overview

Category

The BQ7692000PW belongs to the category of integrated circuits (ICs) used in battery management systems.

Use

This IC is specifically designed for monitoring and protecting lithium-ion battery packs.

Characteristics

  • High accuracy voltage and temperature monitoring
  • Overvoltage, undervoltage, and overtemperature protection
  • Balancing control for individual cells within a battery pack
  • Communication interface for system integration

Package

The BQ7692000PW is available in a small outline package (SOP) with 20 pins.

Essence

The essence of the BQ7692000PW lies in its ability to ensure the safe and efficient operation of lithium-ion battery packs by providing comprehensive monitoring and protection features.

Packaging/Quantity

The BQ7692000PW is typically sold in reels containing a quantity of 250 units per reel.

Specifications

  • Operating Voltage Range: 2.7V to 28V
  • Cell Voltage Measurement Range: 0V to 5V
  • Temperature Measurement Range: -40°C to +125°C
  • Communication Interface: I2C
  • Balancing Current: Up to 100mA per cell
  • Fault Detection and Reporting: Overvoltage, undervoltage, overtemperature, and short circuit

Detailed Pin Configuration

  1. VSS: Ground
  2. SDA: I2C Data Line
  3. SCL: I2C Clock Line
  4. ALERT: Interrupt Output
  5. BAT: Battery Pack Positive Terminal
  6. VCxP: Cell Voltage Measurement Positive Terminal
  7. VCxN: Cell Voltage Measurement Negative Terminal
  8. VREF: Reference Voltage Output
  9. VDD: Supply Voltage Input
  10. BALx: Balancing Control Outputs
  11. TS: Temperature Sensor Input
  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

  1. Accurate voltage and temperature monitoring for each cell in a battery pack.
  2. Overvoltage protection prevents cell damage due to excessive voltage.
  3. Undervoltage protection safeguards against deep discharge, prolonging battery life.
  4. Overtemperature protection prevents thermal runaway and ensures safe operation.
  5. Balancing control equalizes the charge levels of individual cells, optimizing overall battery performance.
  6. I2C communication interface enables seamless integration with battery management systems.

Advantages and Disadvantages

Advantages

  • High accuracy monitoring ensures precise battery management.
  • Comprehensive protection features enhance battery safety and longevity.
  • Balancing control improves overall battery performance.
  • Compact package size allows for space-efficient designs.
  • I2C interface facilitates easy integration into existing systems.

Disadvantages

  • Limited balancing current may not be suitable for high-capacity battery packs.
  • Requires external components for complete battery management system implementation.

Working Principles

The BQ7692000PW operates by continuously monitoring the voltage and temperature of each cell within a lithium-ion battery pack. It compares these measurements against predefined thresholds to detect abnormal conditions such as overvoltage, undervoltage, or overtemperature. In case of a fault, the IC triggers appropriate actions, such as disconnecting the battery from the load or activating the balancing control outputs to equalize cell voltages. The I2C interface allows for communication with an external microcontroller or battery management system, enabling real-time monitoring and control.

Detailed Application Field Plans

The BQ7692000PW is widely used in various applications, including: - Electric vehicles (EVs) and hybrid electric vehicles (HEVs) - Portable electronic devices - Energy storage systems - Uninterruptible power supplies (UPS) - Solar power systems

Detailed and Complete Alternative Models

  1. BQ7693000PW: Similar to the BQ7692000PW, but with additional features for higher cell count battery packs.
  2. BQ7694000PW: Advanced version with enhanced balancing capabilities and extended communication options.
  3. BQ7695000PW: Designed for large-scale battery systems, offering increased voltage and current measurement ranges.

These alternative models provide a range of options to suit different battery management requirements.

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Lista 10 Vanliga frågor och svar relaterade till tillämpningen av BQ7692000PW i tekniska lösningar

Sure! Here are 10 common questions and answers related to the application of BQ7692000PW in technical solutions:

  1. Question: What is the BQ7692000PW?
    Answer: The BQ7692000PW is a battery management system (BMS) integrated circuit designed for monitoring and protecting lithium-ion battery packs.

  2. Question: What is the maximum number of cells that can be monitored by the BQ7692000PW?
    Answer: The BQ7692000PW can monitor up to 15 series-connected lithium-ion battery cells.

  3. Question: What are the key features of the BQ7692000PW?
    Answer: Some key features of the BQ7692000PW include cell voltage monitoring, overvoltage/undervoltage protection, short-circuit detection, temperature monitoring, and communication interfaces.

  4. Question: How does the BQ7692000PW communicate with the host controller?
    Answer: The BQ7692000PW supports communication through an I2C interface, allowing it to easily interface with a microcontroller or other host controller.

  5. Question: Can the BQ7692000PW balance the individual cells in a battery pack?
    Answer: Yes, the BQ7692000PW has built-in balancing functionality to equalize the charge levels of individual cells within a battery pack.

  6. Question: What is the operating voltage range of the BQ7692000PW?
    Answer: The BQ7692000PW operates from a supply voltage range of 2.7V to 16V.

  7. Question: Does the BQ7692000PW have any built-in safety features?
    Answer: Yes, the BQ7692000PW includes various safety features such as overcurrent protection, overtemperature protection, and short-circuit protection.

  8. Question: Can the BQ7692000PW measure battery temperature?
    Answer: Yes, the BQ7692000PW has a built-in temperature sensor for monitoring the temperature of the battery pack.

  9. Question: Is the BQ7692000PW suitable for automotive applications?
    Answer: Yes, the BQ7692000PW is designed to meet the stringent requirements of automotive applications and is AEC-Q100 qualified.

  10. Question: Are there any evaluation modules or development kits available for the BQ7692000PW?
    Answer: Yes, Texas Instruments provides an evaluation module (BQ7692000EVM) and software tools to help developers evaluate and prototype their designs using the BQ7692000PW.

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