BQ2084DBT-V140

Product Overview

Category

BQ2084DBT-V140 belongs to the category of integrated circuits (ICs) specifically designed for battery management systems.

Use

This product is primarily used for monitoring and controlling rechargeable batteries in various applications, such as portable electronic devices, electric vehicles, and renewable energy systems.

Characteristics

• Integrated circuit for battery management
• Monitors battery voltage, current, temperature, and state of charge
• Controls charging and discharging processes
• Provides protection against overcharging, over-discharging, and over-temperature conditions

Package

BQ2084DBT-V140 is available in a small outline transistor (SOT) package, which ensures easy integration into electronic devices.

Essence

The essence of this product lies in its ability to accurately monitor and control battery parameters, ensuring optimal performance and safety.

Packaging/Quantity

This product is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Supply Voltage: 2.7V to 3.6V
• Operating Temperature Range: -40°C to +85°C
• Communication Interface: I2C
• Battery Voltage Measurement Range: 0V to 5V
• Battery Current Measurement Range: -10A to +10A
• State of Charge Measurement Resolution: 1%
• Overvoltage Protection Threshold: Configurable
• Undervoltage Protection Threshold: Configurable
• Overcurrent Protection Threshold: Configurable
• Over-temperature Protection Threshold: Configurable

Detailed Pin Configuration

1. VSS: Ground
2. SDA: I2C Data Line
3. SCL: I2C Clock Line
4. ALERT: Interrupt Output
5. BAT: Battery Voltage Input
6. TS: Temperature Sensor Input
7. VDD: Supply Voltage

Functional Features

1. Battery Monitoring: The BQ2084DBT-V140 accurately measures battery voltage, current, temperature, and state of charge, providing real-time data for monitoring purposes.
2. Charging Control: This IC controls the charging process by regulating the charging current and voltage, ensuring safe and efficient charging.
3. Discharging Control: It also manages the discharging process by controlling the discharge current to prevent over-discharging, which can damage the battery.
4. Protection Mechanisms: The BQ2084DBT-V140 incorporates various protection mechanisms, including overvoltage, undervoltage, overcurrent, and over-temperature protection, safeguarding the battery from potential hazards.

Advantages and Disadvantages

Advantages

• Accurate battery monitoring and control
• Comprehensive protection features
• Compact package for easy integration
• Wide operating temperature range
• Configurable protection thresholds

Disadvantages

• Limited compatibility with certain battery chemistries
• Requires an external microcontroller for full functionality

Working Principles

The BQ2084DBT-V140 operates based on the principles of voltage, current, and temperature sensing. It continuously measures these parameters using internal circuitry and communicates the data through the I2C interface. Based on the measured values, it regulates the charging and discharging processes, ensuring optimal battery performance and safety.

Detailed Application Field Plans

1. Portable Electronic Devices: The BQ2084DBT-V140 is widely used in smartphones, tablets, laptops, and other portable electronic devices to monitor and control the battery, prolonging its lifespan and enhancing user safety.
2. Electric Vehicles: In electric vehicles, this IC plays a crucial role in managing the battery pack, optimizing charging and discharging processes, and protecting against potential hazards.
3. Renewable Energy Systems: The BQ2084DBT-V140 is also employed in renewable energy systems, such as solar power installations and wind farms, to monitor and control battery banks, ensuring efficient energy storage and utilization.

Detailed and Complete Alternative Models

1. BQ2083DBT-V140: Similar to BQ2084DBT-V140, but without the temperature sensing feature.
2. BQ2085DBT-V140: Enhanced version with additional features like cell balancing and fuel gauge functionality.
3. BQ2086DBT-V140: Advanced model with extended communication interfaces and higher precision measurements.

These alternative models offer varying levels of functionality and can be chosen based on specific application requirements.

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