BQ2018TS-E1TR

Product Overview

Category

The BQ2018TS-E1TR belongs to the category of integrated circuits (ICs) specifically designed for battery management systems.

Use

This IC is primarily used for monitoring and controlling the charging and discharging processes of rechargeable batteries. It provides accurate measurements of battery voltage, current, and temperature, enabling efficient and safe battery operation.

Characteristics

• High precision: The BQ2018TS-E1TR offers precise measurement capabilities, ensuring accurate monitoring of battery parameters.
• Low power consumption: This IC is designed to minimize power consumption, making it suitable for battery-powered applications.
• Compact package: The BQ2018TS-E1TR is available in a small form factor package, allowing for easy integration into various electronic devices.
• Enhanced safety features: It incorporates advanced safety mechanisms to prevent overcharging, over-discharging, and overheating of batteries.

Package and Quantity

The BQ2018TS-E1TR is typically packaged in a surface-mount technology (SMT) package, such as a thin small outline package (TSOP). It is commonly supplied in reels or tubes, with quantities varying depending on the manufacturer's specifications.

Specifications

• Input Voltage Range: 2.7V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Battery Voltage Measurement Accuracy: ±0.5%
• Current Measurement Accuracy: ±1%
• Temperature Measurement Accuracy: ±2°C
• Communication Interface: I2C

Detailed Pin Configuration

The BQ2018TS-E1TR has a total of 16 pins, each serving a specific function. The pin configuration is as follows:

1. VSS: Ground
2. SDA: Serial Data Line (I2C)
3. SCL: Serial Clock Line (I2C)
4. VDD: Power Supply
5. BAT: Battery Voltage Input
6. TS: Temperature Sensor Input
7. CC1: Charge Current Monitor Input
8. CC2: Discharge Current Monitor Input
9. DSG: Discharge Gate Control Output
10. CHG: Charge Gate Control Output
11. THERM: Thermistor Input
12. SRP: System Reset Output
13. SDA2: Auxiliary Serial Data Line (I2C)
14. SCL2: Auxiliary Serial Clock Line (I2C)
15. VSS2: Ground
16. VDD2: Power Supply

Functional Features

• Accurate battery parameter measurement and monitoring
• Overcharging and over-discharging protection
• Temperature monitoring for thermal management
• Communication interface for data exchange with external devices
• Integrated gate control outputs for charge and discharge processes
• System reset functionality for fault detection and recovery

Advantages and Disadvantages

Advantages

• High precision measurements ensure accurate battery monitoring.
• Low power consumption prolongs battery life.
• Compact package allows for easy integration into various applications.
• Enhanced safety features protect batteries from damage.

Disadvantages

• Limited to I2C communication interface, may not be compatible with all systems.
• Temperature measurement accuracy may be affected by external factors.

Working Principles

The BQ2018TS-E1TR operates based on the principle of measuring voltage, current, and temperature to monitor the state of a rechargeable battery. It utilizes an internal analog-to-digital converter (ADC) to convert the analog signals from the battery into digital values. These values are then processed and communicated through the I2C interface to an external microcontroller or host system.

The IC incorporates various algorithms and safety mechanisms to ensure optimal battery performance and prevent hazardous conditions such as overcharging, over-discharging, and overheating. It continuously monitors the battery parameters and triggers appropriate actions to maintain safe and efficient battery operation.

Detailed Application Field Plans

The BQ2018TS-E1TR finds applications in a wide range of battery-powered devices, including but not limited to: - Portable electronic devices (e.g., smartphones, tablets) - Medical equipment - Electric vehicles - Power tools - Renewable energy systems

Its accurate measurement capabilities and safety features make it suitable for any application that requires precise battery monitoring and control.

Alternative Models

For those seeking alternative options, the following ICs can be considered as substitutes for the BQ2018TS-E1TR: - BQ2019TS-E1TR - BQ2022SN-E1TR - BQ2060S-E1TR - BQ2084DBT-E1TR

These models offer similar functionalities and characteristics, providing flexibility in choosing the most suitable option for specific applications.

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