BQ27546YZFR-G1

Product Overview

Category

The BQ27546YZFR-G1 belongs to the category of integrated circuits (ICs) specifically designed for battery management.

Use

This IC is primarily used for accurate fuel gauging and monitoring of single-cell Li-Ion and Li-Polymer batteries.

Characteristics

• Accurate battery capacity estimation
• Real-time voltage, current, and temperature monitoring
• Integrated protection features for overvoltage, undervoltage, and overcurrent conditions
• Low-power consumption
• Small form factor

Package

The BQ27546YZFR-G1 is available in a small 15-pin DSBGA package, which allows for space-efficient integration into battery-powered devices.

Essence

The essence of the BQ27546YZFR-G1 lies in its ability to accurately measure and estimate the remaining capacity of a single-cell Li-Ion or Li-Polymer battery, enabling efficient power management and prolonging battery life.

Packaging/Quantity

The BQ27546YZFR-G1 is typically sold in reels, with each reel containing a specified quantity of ICs. The exact packaging and quantity may vary depending on the supplier.

Specifications

• Operating Voltage: 2.7V to 4.8V
• Battery Capacity Range: 0mAh to 65535mAh
• Temperature Measurement Range: -40°C to +85°C
• Communication Interface: I2C
• Dimensions: 2.5mm x 2.5mm x 0.8mm

Detailed Pin Configuration

1. VSS - Ground
2. SDA - I2C Serial Data
3. SCL - I2C Serial Clock
4. TS - Temperature Sense Input
5. BAT - Battery Voltage Sense Input
6. SRP - System Reset Output
7. SRN - System Reset Input
8. VDD - Power Supply
9. GPOUT - General Purpose Output
10. VSS - Ground
11. VSS - Ground
12. VSS - Ground
13. VSS - Ground
14. VSS - Ground
15. VSS - Ground

Functional Features

• Accurate fuel gauging and capacity estimation
• Real-time monitoring of battery voltage, current, and temperature
• Integrated protection against overvoltage, undervoltage, and overcurrent conditions
• Low-power consumption for extended battery life
• Configurable alarm thresholds and alerts
• I2C interface for easy integration with microcontrollers and battery management systems

Advantages and Disadvantages

Advantages

• Accurate battery capacity estimation helps optimize power management.
• Real-time monitoring enables proactive maintenance and prevents unexpected shutdowns.
• Integrated protection features safeguard the battery and connected devices.
• Small form factor allows for space-efficient integration into various applications.
• Low-power consumption prolongs battery life.

Disadvantages

• Limited to single-cell Li-Ion and Li-Polymer batteries.
• Requires proper calibration for accurate capacity estimation.
• May require additional external components for certain applications.

Working Principles

The BQ27546YZFR-G1 utilizes advanced algorithms and circuitry to accurately estimate the remaining capacity of a single-cell Li-Ion or Li-Polymer battery. It continuously monitors the battery voltage, current, and temperature to calculate the state of charge (SOC) and predict the remaining runtime. The IC also provides integrated protection against overvoltage, undervoltage, and overcurrent conditions, ensuring safe operation of the battery and connected devices.

Detailed Application Field Plans

The BQ27546YZFR-G1 finds applications in various fields, including:

1. Portable Electronics: Enables accurate battery capacity estimation and monitoring in smartphones, tablets, portable gaming devices, and wearable devices.
2. Medical Devices: Provides reliable fuel gauging for battery-powered medical equipment, ensuring uninterrupted operation during critical procedures.
3. Industrial Equipment: Facilitates efficient power management in handheld tools, measurement instruments, and other battery-powered industrial devices.
4. Internet of Things (IoT): Enables intelligent power management and remote monitoring in IoT devices, optimizing energy consumption and enhancing device performance.

Detailed and Complete Alternative Models

1. BQ27541-G1: Similar to the BQ27546YZFR-G1, but with a different pin configuration.
2. BQ27545-G1: Offers similar functionality as the BQ27546YZFR-G1, but with additional features such as coulomb counting and authentication.
3. BQ27441-G1: Suitable for multi-cell battery systems, providing accurate fuel gauging and protection for multiple Li-Ion or Li-Polymer cells.

(Note: The above alternative models are provided for reference and may have specific differences in terms of specifications and pin configuration. It is recommended to consult the respective datasheets