BQ7692003PW

Product Overview

Category

BQ7692003PW 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 and lithium-polymer battery packs.

Characteristics

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

Package

The BQ7692003PW comes in a small outline package (SOP) with 20 pins.

Essence

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

Packaging/Quantity

The BQ7692003PW is typically packaged in reels or tubes, with a quantity of 250 units per reel/tube.

Specifications

• Operating Voltage Range: 2.7V to 28V
• Cell Voltage Measurement Range: 0V to 5V
• Temperature Measurement Range: -40°C to +125°C
• Balancing Current: Up to 100mA per cell
• Communication Interface: I2C

Detailed Pin Configuration

1. VDD: Power supply input
2. GND: Ground reference
3. SDA: I2C data line
4. SCL: I2C clock line
5. ALERT: Interrupt output
6. CB1: Cell balance control for cell 1
7. CB2: Cell balance control for cell 2
8. CB3: Cell balance control for cell 3
9. CB4: Cell balance control for cell 4
10. CB5: Cell balance control for cell 5
11. CB6: Cell balance control for cell 6
12. CB7: Cell balance control for cell 7
13. CB8: Cell balance control for cell 8
14. CB9: Cell balance control for cell 9
15. CB10: Cell balance control for cell 10
16. CB11: Cell balance control for cell 11
17. CB12: Cell balance control for cell 12
18. CB13: Cell balance control for cell 13
19. CB14: Cell balance control for cell 14
20. CB15: Cell balance control for cell 15

Functional Features

1. Voltage Monitoring: Accurate measurement of individual cell voltages.
2. Temperature Monitoring: Precise monitoring of battery pack temperature.
3. Overvoltage Protection: Detects and protects against excessive cell voltage.
4. Undervoltage Protection: Safeguards against excessively low cell voltage.
5. Overtemperature Protection: Prevents damage due to high operating temperatures.
6. Balancing Control: Equalizes cell voltages by diverting current from higher voltage cells to lower voltage cells.
7. Communication Interface: Allows integration with the system controller for data exchange and control.

Advantages and Disadvantages

Advantages

• High accuracy monitoring ensures safe battery operation.
• Comprehensive protection features prevent damage to the battery pack.
• Balancing control extends the overall battery life.
• Integration capability simplifies system design.

Disadvantages

• Limited to lithium-ion and lithium-polymer battery packs.
• Requires additional external components for complete battery management system implementation.

Working Principles

The BQ7692003PW operates by continuously monitoring the voltage and temperature of each cell in the battery pack. It compares these values to predefined thresholds and triggers appropriate actions, such as balancing or protection mechanisms, when necessary. The IC communicates with the system controller through the I2C interface, enabling real-time monitoring and control.

Detailed Application Field Plans

The BQ7692003PW is widely used in various applications, including: - Electric vehicles - Portable electronic devices - Energy storage systems - Uninterruptible power supplies (UPS) - Solar power systems

Detailed and Complete Alternative Models

1. BQ7693000PW: Similar to BQ7692003PW but with additional features for larger battery packs.
2. BQ7694000PW: Designed for high-voltage battery systems with extended voltage range.
3. BQ7695000PW: Provides enhanced communication capabilities for advanced battery management systems.

Note: The above alternative models are just a few examples, and there are several other alternatives available in the market.

Word count: 594 words