Texas Instruments
Maaaring representasyon ang larawan.
Tingnan ang mga detalye para sa mga detalye ng produkto.
BQ7694000DBT
Tingnan ang Detalye DataSheets

BQ7694000DBT

Product Overview

Category

BQ7694000DBT belongs to the category of integrated circuits (ICs) used in battery management systems (BMS).

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
  • Communication interface for system integration
  • Low power consumption

Package

BQ7694000DBT is available in a small outline transistor (SOT) package.

Essence

The essence of this product 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 IC is typically sold in reels or tubes, with each reel/tube containing a specific quantity of units. The exact packaging and quantity may vary depending on the supplier.

Specifications

  • Operating Voltage: 2.7V to 16V
  • Cell Voltage Measurement Range: 0V to 5V
  • Temperature Measurement Range: -40°C to +125°C
  • Communication Interface: I2C, SMBus
  • Balancing Current: Up to 100mA per cell
  • Power Consumption: <10µA in sleep mode

Detailed Pin Configuration

  1. VDD: Power supply input
  2. GND: Ground reference
  3. SDA: Serial data line for communication
  4. SCL: Serial clock line for communication
  5. ALERT: Interrupt output for fault indication
  6. BALx: Balancing control pins for individual cells
  7. TEMP: Temperature measurement input
  8. VCx: Cell voltage measurement inputs

Functional Features

  1. Voltage Monitoring: Accurate measurement of individual cell voltages.
  2. Temperature Monitoring: Precise monitoring of battery pack temperature.
  3. Overvoltage Protection: Automatically disconnects the battery pack when any cell voltage exceeds the safe limit.
  4. Undervoltage Protection: Safeguards against excessive discharge by disconnecting the battery pack when any cell voltage drops below the specified threshold.
  5. Overtemperature Protection: Shuts down the battery pack if the temperature exceeds the predefined limit.
  6. Balancing Control: Enables balancing of individual cells to ensure uniform charge levels.
  7. Communication Interface: Facilitates integration with the overall battery management system.

Advantages and Disadvantages

Advantages

  • High accuracy monitoring ensures optimal battery performance.
  • Comprehensive protection features enhance battery safety.
  • Balancing control extends battery pack lifespan.
  • Low power consumption minimizes energy loss.

Disadvantages

  • Limited to lithium-ion battery packs.
  • Requires additional external components for complete BMS implementation.

Working Principles

BQ7694000DBT operates by continuously monitoring the voltage and temperature of each cell in a lithium-ion battery pack. It compares these measurements against predefined thresholds to detect abnormal conditions. In case of overvoltage, undervoltage, or overtemperature events, the IC takes appropriate actions to protect the battery pack. Additionally, it enables cell balancing to equalize charge levels among cells, thereby maximizing the overall capacity and lifespan of the battery pack.

Detailed Application Field Plans

The BQ7694000DBT IC finds extensive application in various fields, including: 1. Electric Vehicles (EVs): Ensures safe and efficient operation of EV battery packs. 2. Renewable Energy Systems: Monitors and protects battery banks used in solar or wind energy storage. 3. Portable Electronics: Provides battery management capabilities for smartphones, tablets, and other portable devices. 4. Industrial Equipment: Enables reliable battery monitoring and protection in industrial machinery and equipment.

Detailed and Complete Alternative Models

  1. BQ7692000DBT: Similar to BQ7694000DBT, but with a lower cell voltage measurement range.
  2. BQ7693000DBT: Offers additional features such as current sensing and fuel gauge functionality.
  3. LTC6804-2: A competing IC with similar battery management capabilities.

(Note: The above list is not exhaustive and there may be other alternative models available in the market.)

In conclusion, the BQ7694000DBT IC is a versatile and reliable component used in battery management systems for lithium-ion battery packs. With its comprehensive monitoring, protection, and balancing features, it ensures the safe and efficient operation of various applications ranging from electric vehicles to portable electronics.

Maglista ng 10 karaniwang tanong at sagot na nauugnay sa aplikasyon ng BQ7694000DBT sa mga teknikal na solusyon

Sure! Here are 10 common questions and answers related to the application of BQ7694000DBT in technical solutions:

  1. Question: What is the BQ7694000DBT?
    Answer: The BQ7694000DBT is a battery management system (BMS) integrated circuit designed for monitoring and protecting lithium-ion battery packs.

  2. Question: What are the key features of the BQ7694000DBT?
    Answer: The key features include cell voltage monitoring, overcurrent protection, temperature monitoring, and communication interfaces like I2C and SPI.

  3. Question: How many cells can the BQ7694000DBT monitor?
    Answer: The BQ7694000DBT can monitor up to 16 series-connected lithium-ion battery cells.

  4. Question: Can the BQ7694000DBT balance the individual cell voltages?
    Answer: Yes, the BQ7694000DBT has built-in balancing functionality to equalize the voltages across the battery cells.

  5. Question: What is the operating voltage range of the BQ7694000DBT?
    Answer: The BQ7694000DBT operates within a voltage range of 2.7V to 4.8V.

  6. Question: Does the BQ7694000DBT support temperature monitoring?
    Answer: Yes, the BQ7694000DBT has an integrated temperature sensor for monitoring the battery pack's temperature.

  7. Question: Can the BQ7694000DBT detect overcurrent conditions?
    Answer: Yes, the BQ7694000DBT has overcurrent detection and protection features to safeguard the battery pack from excessive current flow.

  8. Question: What communication interfaces does the BQ7694000DBT support?
    Answer: The BQ7694000DBT supports both I2C and SPI interfaces for communication with a microcontroller or host system.

  9. Question: Is the BQ7694000DBT suitable for automotive applications?
    Answer: Yes, the BQ7694000DBT is designed to meet the stringent requirements of automotive applications, including electric vehicles.

  10. Question: Are there any evaluation modules or development kits available for the BQ7694000DBT?
    Answer: Yes, Texas Instruments offers evaluation modules and development kits that can help in the prototyping and testing of the BQ7694000DBT in various technical solutions.

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