BQ7694000DBTR

Product Overview

Category

BQ7694000DBTR belongs to the category of integrated circuits (ICs).

Use

This IC is primarily used for battery management in various electronic devices.

Characteristics

• BQ7694000DBTR is a highly efficient and reliable battery management IC.
• It offers advanced features for monitoring and protecting battery cells.
• The IC is designed to ensure safe and optimal performance of batteries.
• It provides accurate voltage and temperature measurements for precise battery management.

Package

BQ7694000DBTR comes in a small outline transistor (SOT) package, which is suitable for surface mount applications.

Essence

The essence of BQ7694000DBTR lies in its ability to effectively manage and protect battery cells, ensuring their longevity and optimal performance.

Packaging/Quantity

This IC is typically packaged in reels, with each reel containing a specific quantity of BQ7694000DBTR units. The exact quantity may vary depending on the supplier.

Specifications

• Input Voltage Range: 2.7V to 16V
• Number of Battery Cells: Up to 15 cells
• Communication Interface: I2C
• Operating Temperature Range: -40°C to +85°C
• Accuracy of Voltage Measurement: ±10mV
• Accuracy of Temperature Measurement: ±1°C

Detailed Pin Configuration

BQ7694000DBTR has a total of 24 pins, each serving a specific function. Here is a detailed pin configuration:

1. VSS - Ground
2. VDD - Power Supply
3. SDA - I2C Data Line
4. SCL - I2C Clock Line
5. ALERT - Interrupt Output
6. TS1 - Negative Temperature Sense Input
7. TS2 - Positive Temperature Sense Input
8. VC1 - Cell 1 Voltage Sense Input
9. VC2 - Cell 2 Voltage Sense Input
10. VC3 - Cell 3 Voltage Sense Input
11. VC4 - Cell 4 Voltage Sense Input
12. VC5 - Cell 5 Voltage Sense Input
13. VC6 - Cell 6 Voltage Sense Input
14. VC7 - Cell 7 Voltage Sense Input
15. VC8 - Cell 8 Voltage Sense Input
16. VC9 - Cell 9 Voltage Sense Input
17. VC10 - Cell 10 Voltage Sense Input
18. VC11 - Cell 11 Voltage Sense Input
19. VC12 - Cell 12 Voltage Sense Input
20. VC13 - Cell 13 Voltage Sense Input
21. VC14 - Cell 14 Voltage Sense Input
22. VC15 - Cell 15 Voltage Sense Input
23. VREF - Reference Voltage Output
24. VSS - Ground

Functional Features

• Overvoltage protection: BQ7694000DBTR monitors the voltage of each battery cell and triggers an alert if any cell exceeds the safe voltage threshold.
• Undervoltage protection: It detects low voltage conditions in battery cells and initiates appropriate actions to prevent damage.
• Temperature monitoring: The IC measures the temperature of the battery pack and provides accurate readings for thermal management.
• Balancing control: BQ7694000DBTR supports active balancing of battery cells, ensuring uniform charge distribution and maximizing overall battery capacity.
• Communication interface: It features an I2C interface for easy integration with microcontrollers or battery management systems.

Advantages and Disadvantages

Advantages

• Accurate voltage and temperature measurements for precise battery management.
• Comprehensive protection mechanisms to ensure the safety of battery cells.
• Active balancing feature enhances battery performance and longevity.
• Compact SOT package allows for space-efficient designs.

Disadvantages

• Limited to a maximum of 15 battery cells.
• Requires external microcontroller or battery management system for full functionality.

Working Principles

BQ7694000DBTR operates by continuously monitoring the voltage and temperature of each battery cell. It compares these measurements with predefined thresholds to detect any abnormal conditions. If an overvoltage, undervoltage, or high-temperature situation is detected, the IC triggers appropriate actions such as generating an alert signal or activating balancing circuits. This ensures the safe and efficient operation of the battery pack.

Detailed Application Field Plans

BQ7694000DBTR finds applications in various fields where battery management is crucial. Some potential application areas include:

1. Electric vehicles: The IC can be used in electric vehicle battery packs to monitor and protect individual cells, ensuring optimal performance and safety.
2. Renewable energy systems: BQ7694000DBTR enables efficient management of battery banks in solar or wind power systems, maximizing energy storage capacity.
3. Portable electronic devices: It can be integrated into smartphones, tablets, and other portable devices to enhance battery life and prevent damage due to overcharging or overheating