BQ2014SN-D120TR

Overview

Product Category

BQ2014SN-D120TR belongs to the category of integrated circuits (ICs) specifically designed for battery management systems.

Use

This product is primarily used for monitoring and controlling the charging and discharging processes of rechargeable batteries. It provides accurate measurements of battery parameters such as voltage, current, temperature, and state of charge.

Characteristics

• High precision: The BQ2014SN-D120TR offers precise measurement capabilities, ensuring accurate monitoring of battery performance.
• Low power consumption: This IC is designed to consume minimal power, making it suitable for energy-efficient applications.
• Compact package: The BQ2014SN-D120TR comes in a small form factor, enabling easy integration into various battery management systems.
• Robustness: It is built to withstand harsh environmental conditions, ensuring reliable operation even in challenging situations.

Package and Quantity

The BQ2014SN-D120TR is available in a surface-mount 8-pin SOIC (Small Outline Integrated Circuit) package. It is typically sold in reels containing a specified quantity, usually 2500 units per reel.

Specifications

• Operating Voltage Range: 2.7V to 5.5V
• Temperature Measurement Range: -40°C to +85°C
• Communication Interface: I2C (Inter-Integrated Circuit)
• Battery Capacity Measurement Resolution: 1mAh
• Accuracy:
  • Voltage Measurement: ±10mV
  • Current Measurement: ±50mA
  • Temperature Measurement: ±2°C
• Standby Current: 10µA (typical)

Pin Configuration

The BQ2014SN-D120TR features an 8-pin SOIC package with the following pin configuration:

1. VSS: Ground
2. SDA: I2C Serial Data Line
3. SCL: I2C Serial Clock Line
4. VDD: Power Supply Voltage
5. TS: Temperature Sense Input
6. BAT: Battery Voltage Sense Input
7. CC: Charge Current Sense Input
8. GPOUT: General Purpose Output

Functional Features

1. Accurate Battery Monitoring: The BQ2014SN-D120TR provides precise measurements of battery voltage, current, temperature, and state of charge, enabling accurate monitoring of battery performance.
2. Overcharge/Overdischarge Protection: It incorporates built-in protection mechanisms to prevent overcharging and overdischarging of batteries, ensuring their longevity and safety.
3. Temperature Monitoring: The IC includes a temperature sensor that allows real-time monitoring of battery temperature, helping prevent overheating and potential damage.
4. Communication Interface: The I2C interface enables seamless communication with microcontrollers or other devices, facilitating integration into battery management systems.

Advantages and Disadvantages

Advantages

• High precision measurements ensure accurate battery monitoring.
• Low power consumption makes it suitable for energy-efficient applications.
• Compact package allows for easy integration into various systems.
• Robust design ensures reliable operation in harsh environments.

Disadvantages

• Limited to I2C communication interface, which may not be compatible with all systems.
• Requires external components for complete battery management functionality.

Working Principles

The BQ2014SN-D120TR operates based on the principle of measuring voltage, current, and temperature to determine the state of charge of a battery. It utilizes an internal analog-to-digital converter (ADC) to convert these measurements into digital values. These values are then processed by the IC's internal circuitry to provide accurate information about the battery's performance.

Application Field Plans

The BQ2014SN-D120TR is widely used in various applications, including: - Portable electronic devices such as smartphones, tablets, and laptops - Electric vehicles and hybrid electric vehicles - Renewable energy systems like solar power storage - Industrial equipment and machinery relying on battery power

Alternative Models

For battery management applications, there are several alternative models available in the market. Some notable alternatives to the BQ2014SN-D120TR include: - BQ76930: A multi-cell battery monitor and protector IC with enhanced features. - LTC6803: A high-precision battery stack monitor IC suitable for large battery packs. - MAX14920: An integrated battery management IC with advanced safety features.

These alternative models offer similar functionalities and can be considered based on specific application requirements.

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