BQ2084DBTR-V150G4

Overview

Product Category

BQ2084DBTR-V150G4 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 BQ2084DBTR-V150G4 offers precise measurement and control of battery voltage, current, temperature, and state of charge.
• Low power consumption: It operates efficiently, minimizing power loss during battery management operations.
• Robust protection features: The IC incorporates various protection mechanisms to prevent overcharging, over-discharging, and excessive temperature conditions.
• Communication capabilities: It supports communication protocols like I2C, SMBus, and HDQ, enabling seamless integration with host systems.

Package and Quantity

The BQ2084DBTR-V150G4 is available in a small form factor package, known as Thin Shrink Small Outline Package (TSSOP). It is typically supplied in reels or tubes, with a quantity of 2500 units per reel/tube.

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
• State of Charge Measurement Resolution: 1%
• Communication Interface: I2C, SMBus, HDQ

Pin Configuration

The BQ2084DBTR-V150G4 has a total of 16 pins, each serving a specific function. The pin configuration is as follows:

1. VSS - Ground
2. SDA - I2C Data Line
3. SCL - I2C Clock Line
4. VDD - Power Supply Voltage
5. TS1 - Temperature Sensor Input 1
6. TS2 - Temperature Sensor Input 2
7. BAT - Battery Voltage Measurement
8. CC - Current Sense Input
9. SRP - System Reset Pin
10. HDQ - HDQ Communication Line
11. VSS - Ground
12. VSS - Ground
13. VSS - Ground
14. VSS - Ground
15. VSS - Ground
16. VSS - Ground

Functional Features

The BQ2084DBTR-V150G4 offers several functional features that enhance battery management capabilities:

1. Accurate Battery Monitoring: The IC provides precise measurements of battery voltage, current, and temperature, enabling accurate estimation of the state of charge.
2. Overcharge/Over-Discharge Protection: It incorporates built-in protection circuits to prevent overcharging and over-discharging, ensuring the battery operates within safe limits.
3. Temperature Monitoring: The temperature sensor inputs allow real-time monitoring of battery temperature, facilitating thermal management and preventing overheating.
4. Communication Interface: The I2C, SMBus, and HDQ interfaces enable seamless communication with host systems, allowing for remote monitoring and control of battery parameters.

Advantages and Disadvantages

Advantages

• High precision measurement ensures accurate battery monitoring.
• Robust protection mechanisms safeguard the battery from damage.
• Low power consumption minimizes energy loss during operation.
• Multiple communication interfaces facilitate integration with various systems.

Disadvantages

• Limited compatibility: The IC may not be compatible with all battery chemistries or system architectures.
• Complex pin configuration: The large number of pins may require careful PCB layout and routing considerations.

Working Principles

The BQ2084DBTR-V150G4 operates based on the principle of measuring battery voltage, current, and temperature to estimate the state of charge. It utilizes internal algorithms to process the measured data and provide accurate information about the battery's capacity and health.

The IC continuously monitors the battery parameters and communicates with the host system to exchange information and receive commands. It also incorporates protection mechanisms to prevent overcharging, over-discharging, and excessive temperature conditions, ensuring safe and reliable battery operation.

Application Field Plans

The BQ2084DBTR-V150G4 finds extensive application in various fields, including:

1. Portable Electronic Devices: It is used in smartphones, tablets, laptops, and other portable devices to monitor and manage battery performance.
2. Electric Vehicles: The IC plays a crucial role in electric vehicle battery management systems, ensuring optimal charging, discharging, and overall battery health.
3. Renewable Energy Systems: It is employed in solar power systems, wind energy storage, and other renewable energy applications to monitor and control battery parameters.

Alternative Models

For those seeking alternative options, the following models offer similar functionality to the BQ2084DBTR-V150G4:

1. BQ208