BQ27520YZFR-G1

Product Overview

Category

The BQ27520YZFR-G1 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
• Accurate monitoring of battery capacity and voltage
• Precise fuel gauging and state-of-charge estimation
• Temperature and current sensing capabilities
• Communication interface for data exchange with host systems

Package

The BQ27520YZFR-G1 is available in a small form factor package, typically a 20-pin QFN (Quad Flat No-Lead) package.

Essence

The essence of the BQ27520YZFR-G1 lies in its ability to accurately measure and estimate the remaining capacity of a rechargeable battery, providing crucial information for efficient power management.

Packaging/Quantity

This product is usually supplied in tape and reel packaging, with a standard quantity of 2500 units per reel.

Specifications

• Operating Voltage: 2.7V to 4.5V
• Battery Capacity Measurement Range: 0mAh to 65535mAh
• Communication Interface: I2C (Inter-Integrated Circuit)
• Temperature Measurement Range: -40°C to +85°C
• Current Measurement Range: ±3.84A
• Accuracy: ±1% (typical)

Detailed Pin Configuration

The BQ27520YZFR-G1 features a 20-pin configuration with the following pin assignments:

1. VSS - Ground
2. SDA - I2C Serial Data Input/Output
3. SCL - I2C Serial Clock Input
4. ALERT - Interrupt Output
5. TS1 - Temperature Sense Input 1
6. TS2 - Temperature Sense Input 2
7. VSS - Ground
8. VDD - Power Supply Voltage
9. BAT - Battery Voltage Sense Input
10. CC - Charge Current Sense Input
11. VSS - Ground
12. SRP - System Reset Output
13. HDQ - 1-Wire Serial Data Input/Output
14. VSS - Ground
15. VSS - Ground
16. VSS - Ground
17. VSS - Ground
18. VSS - Ground
19. VSS - Ground
20. VSS - Ground

Functional Features

• Accurate fuel gauging and state-of-charge estimation
• Real-time monitoring of battery voltage, current, and temperature
• Overcurrent and overvoltage protection
• Low-power consumption in standby mode
• Configurable alarm thresholds for various battery conditions
• Communication interface for data exchange with host systems

Advantages and Disadvantages

Advantages

• High accuracy in measuring battery capacity
• Comprehensive monitoring and protection features
• Compact form factor for easy integration into electronic devices
• Flexible communication interface for seamless data exchange

Disadvantages

• Limited compatibility with certain battery chemistries or configurations
• Reliance on external host systems for full functionality

Working Principles

The BQ27520YZFR-G1 operates by continuously monitoring the battery voltage, current, and temperature. It utilizes sophisticated algorithms to accurately estimate the remaining battery capacity based on these measurements. The integrated circuit communicates with the host system through the I2C or 1-Wire interface, providing real-time data for effective power management.

Detailed Application Field Plans

The BQ27520YZFR-G1 finds applications in a wide range of electronic devices that rely on rechargeable batteries. Some notable application fields include:

1. Portable consumer electronics (e.g., smartphones, tablets, laptops)
2. Wearable devices (e.g., smartwatches, fitness trackers)
3. Medical devices (e.g., portable monitors, insulin pumps)
4. Industrial equipment (e.g., handheld tools, wireless sensors)
5. Electric vehicles and hybrid electric vehicles

Detailed and Complete Alternative Models

1. BQ27520YZFT-G1
2. BQ27520YZFR-G2
3. BQ27520YZFT-G2
4. BQ27520YZFT-G3
5. BQ27520YZFR-G3

These alternative models offer similar functionality and features to the BQ27520YZFR-G1, providing options for different package types or minor variations in specifications.

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