BQ27505YZGR-J4

Product Overview

Category

The BQ27505YZGR-J4 belongs to the category of integrated circuits (ICs) specifically designed for battery management.

Use

This product is primarily used for monitoring and controlling the performance of rechargeable batteries in various electronic devices.

Characteristics

• Integrated circuit for battery management
• Monitors battery capacity, voltage, and temperature
• Controls charging and discharging processes
• Provides accurate battery information to the device

Package

The BQ27505YZGR-J4 comes in a small form factor package, typically a 20-pin VQFN (Very Thin Quad Flat No-Lead) package.

Essence

The essence of the BQ27505YZGR-J4 lies in its ability to accurately monitor and control battery performance, ensuring optimal usage and prolonging battery life.

Packaging/Quantity

This product is usually packaged in reels or tubes, with a typical quantity of 2500 units per reel.

Specifications

• Operating Voltage: 2.7V to 3.6V
• Battery Capacity Measurement Range: 0mAh to 65535mAh
• Temperature Measurement Range: -40°C to +85°C
• Communication Interface: I2C (Inter-Integrated Circuit)
• Dimensions: 4mm x 4mm x 0.75mm

Detailed Pin Configuration

1. VSS - Ground
2. SDA - I2C Data Line
3. SCL - I2C Clock Line
4. ALERT - Interrupt Output
5. TS - Temperature Sense Input
6. BAT - Battery Voltage Sense Input
7. SRP - System Reset Output
8. VDD - Power Supply
9. VSS - Ground
10. VSS - Ground
11. VSS - Ground
12. VSS - Ground
13. VSS - Ground
14. VSS - Ground
15. VSS - Ground
16. VSS - Ground
17. VSS - Ground
18. VSS - Ground
19. VSS - Ground
20. VSS - Ground

Functional Features

• Accurate battery capacity measurement
• Real-time monitoring of battery voltage and temperature
• Charging and discharging control
• Overvoltage and undervoltage protection
• Temperature compensation for accurate capacity estimation
• Low power consumption

Advantages and Disadvantages

Advantages

• Precise battery management for optimal performance
• Extended battery life through efficient charging and discharging control
• Reliable battery information for device users
• Compact form factor for easy integration into various devices
• Low power consumption for energy-efficient operation

Disadvantages

• Limited compatibility with specific battery types or chemistries
• Requires proper configuration and calibration for accurate measurements
• Relatively higher cost compared to basic battery management solutions

Working Principles

The BQ27505YZGR-J4 operates by continuously monitoring the battery voltage, current, and temperature. It uses these measurements to estimate the battery's state of charge (SOC) and remaining capacity. The IC also controls the charging and discharging processes to ensure safe and efficient operation. Communication with the host device is established through the I2C interface, allowing real-time battery information to be displayed to the user.

Detailed Application Field Plans

The BQ27505YZGR-J4 is widely used in various applications that require precise battery management. Some of the common application fields include:

1. Portable Electronics: Smartphones, tablets, laptops, and portable gaming devices benefit from accurate battery monitoring and extended battery life.
2. Medical Devices: Battery-powered medical equipment relies on reliable battery information for critical operations and patient safety.
3. Industrial Equipment: Battery-powered tools, sensors, and monitoring devices require efficient battery management for optimal performance and longevity.
4. Electric Vehicles: The BQ27505YZGR-J4 can be utilized in electric vehicle battery management systems to ensure safe and efficient operation.

Detailed and Complete Alternative Models

1. BQ27425YZFT-G1: Similar to the BQ27505YZGR-J4, this IC offers advanced battery management features with a different pin configuration.
2. BQ27742EVM: This evaluation module provides a comprehensive solution for battery management, including fuel gauging and protection features.
3. MAX17048G+T: A highly integrated fuel gauge IC suitable for single-cell lithium-ion batteries, offering accurate capacity estimation and communication capabilities.

These alternative models provide similar functionality to the BQ27505YZGR-J4 and can be considered based on specific application requirements.

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