BQ2084DBT-V143

Product Overview

Category

BQ2084DBT-V143 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-V143 is available in a small outline transistor (SOT) package, which ensures compactness and ease of integration into electronic devices.

Essence

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

Packaging/Quantity

BQ2084DBT-V143 is typically supplied in tape and reel packaging, with a quantity of 250 units per reel.

Specifications

• Input Voltage Range: 2.7V to 28V
• Operating Temperature Range: -40°C to +85°C
• Communication Interface: I2C
• Battery Capacity Measurement Resolution: 1mAh
• Overvoltage Protection Threshold: Configurable up to 4.5V
• Undervoltage Protection Threshold: Configurable down to 2.5V
• Overcurrent Protection Threshold: Configurable up to 10A
• Standby Current: 20µA (typical)

Detailed Pin Configuration

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

Functional Features

• Accurate measurement of battery voltage, current, temperature, and state of charge
• Real-time monitoring and reporting of battery status
• Overvoltage, undervoltage, and overcurrent protection
• Temperature sensing for thermal management
• I2C communication interface for easy integration with microcontrollers

Advantages and Disadvantages

Advantages

• Precise battery monitoring and control
• Enhanced safety through protection mechanisms
• Compact package for space-constrained applications
• Wide operating temperature range for versatile usage
• Easy integration with existing systems through I2C interface

Disadvantages

• Limited to I2C communication interface
• Requires external components for complete battery management system implementation

Working Principles

BQ2084DBT-V143 operates by continuously measuring the battery voltage, current, and temperature using dedicated input pins. It utilizes an internal algorithm to calculate the state of charge based on these measurements. The IC communicates with a microcontroller or host system via the I2C interface, providing real-time battery status updates and receiving commands for charging and discharging control.

Detailed Application Field Plans

BQ2084DBT-V143 finds extensive application in various fields, including: 1. Portable electronic devices (e.g., smartphones, tablets, laptops) for accurate battery monitoring and protection. 2. Electric vehicles (EVs) and hybrid electric vehicles (HEVs) for managing battery performance and ensuring safe operation. 3. Renewable energy systems (e.g., solar power systems) for efficient utilization and maintenance of battery banks. 4. Industrial equipment and machinery relying on rechargeable batteries for uninterrupted operation.

Detailed and Complete Alternative Models

1. BQ2085DBT-V143: Similar to BQ2084DBT-V143, but with additional features for enhanced battery management.
2. BQ2084DBT-V144: Variant of BQ2084DBT-V143 with minor differences in specifications and pin configuration.
3. BQ2084DBT-V142: Lower-cost alternative with reduced functionality compared to BQ2084DBT-V143.

(Note: The above list is not exhaustive and may vary based on availability and specific requirements.)

In conclusion, BQ2084DBT-V143 is a highly capable integrated circuit designed for battery management systems. Its accurate monitoring, control features, and protection mechanisms make it an essential component in various applications.