BQ2084DBT-V140G4

Product Overview

Category

BQ2084DBT-V140G4 belongs to the category of integrated circuits (ICs) specifically designed for battery management systems.

Use

This product is primarily used in applications where accurate monitoring and control of battery parameters are essential, such as in portable electronic devices, electric vehicles, and renewable energy systems.

Characteristics

• High precision: The BQ2084DBT-V140G4 offers precise measurement and control of battery voltage, current, temperature, and state of charge.
• Advanced protection features: It incorporates various protection mechanisms to prevent overcharging, over-discharging, and excessive temperature rise.
• Communication capabilities: The IC supports communication protocols like I2C, SMBus, and HDQ, enabling seamless integration with host systems.
• Low power consumption: It operates efficiently, consuming minimal power during operation.
• Compact package: The BQ2084DBT-V140G4 is available in a small form factor package, making it suitable for space-constrained applications.

Package and Quantity

The BQ2084DBT-V140G4 is typically packaged in a compact 20-pin TSSOP (Thin Shrink Small Outline Package). It is commonly supplied in reels containing a quantity of 250 units per reel.

Specifications

• Operating Voltage Range: 2.7V to 5.5V
• Temperature Measurement Range: -40°C to +85°C
• Battery Voltage Measurement Range: 0V to 5V
• Current Measurement Range: -10A to +10A
• Communication Interface: I2C, SMBus, HDQ
• Dimensions: 6.5mm x 4.4mm x 1.0mm

Detailed Pin Configuration

Pin | Name | Function --- | ---- | -------- 1 | VSS | Ground 2 | SDA | I2C Data Line 3 | SCL | I2C Clock Line 4 | HDQ | HDQ Communication Line 5 | VDD | Power Supply 6 | BAT | Battery Voltage Input 7 | TS | Temperature Sensor Input 8 | SRP | System Reset Pin 9 | SCD | State of Charge Detection Output 10 | DSG | Discharge Control Output 11 | CHG | Charge Control Output 12 | THERM| Thermistor Input 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 Battery Monitoring: The BQ2084DBT-V140G4 provides precise measurement of battery voltage, current, temperature, and state of charge, ensuring accurate monitoring of battery health.
2. Protection Mechanisms: It incorporates advanced protection features like overcharging, over-discharging, and over-temperature protection, safeguarding the battery from potential damage.
3. Communication Interface: The IC supports multiple communication protocols, allowing seamless integration with host systems for real-time data exchange and control.
4. Low Power Consumption: With its efficient power management techniques, the BQ2084DBT-V140G4 minimizes power consumption, extending battery life in portable applications.
5. Compact Design: The small form factor package enables easy integration into space-constrained devices without compromising functionality.

Advantages and Disadvantages

Advantages

• High precision battery monitoring
• Advanced protection mechanisms
• Multiple communication interface options
• Low power consumption
• Compact package size

Disadvantages

• Limited compatibility with certain battery chemistries
• Relatively higher cost compared to simpler battery management solutions

Working Principles

The BQ2084DBT-V140G4 operates by continuously monitoring the battery voltage, current, and temperature using its internal sensing circuitry. It employs sophisticated algorithms to accurately estimate the state of charge and predict battery health parameters. The IC communicates with the host system through the supported communication interfaces, enabling real-time data exchange and control.

Detailed Application Field Plans

The BQ2084DBT-V140G4 finds extensive application in various fields, including:

1. Portable Electronic Devices: It is widely used in smartphones, tablets, laptops, and other portable devices to ensure optimal battery performance and safety.
2. Electric Vehicles: The IC plays a crucial role in electric vehicle battery management systems, providing accurate monitoring and control for efficient and safe operation.
3. Renewable Energy Systems: It is employed in solar power storage systems and wind energy applications to manage battery charging and discharging cycles effectively