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BQ27421YZFR-G1B
Product Overview
Category
The BQ27421YZFR-G1B belongs to the category of integrated circuits (ICs) and specifically falls under the battery management ICs.
Use
This product is primarily used for battery fuel gauge applications. It accurately measures the remaining capacity of a battery, providing essential information for monitoring and managing battery usage.
Characteristics
- High accuracy: The BQ27421YZFR-G1B offers precise measurement of battery capacity, enabling accurate estimation of remaining charge.
- Low power consumption: This IC operates with minimal power consumption, ensuring efficient use of energy.
- Small form factor: With its compact size, the BQ27421YZFR-G1B can be easily integrated into various battery-powered devices.
- Advanced features: It provides additional features such as temperature sensing, voltage monitoring, and current measurement.
Package
The BQ27421YZFR-G1B is available in a small footprint package, typically a 12-pin leadless chip carrier (LCC).
Essence
The essence of the BQ27421YZFR-G1B lies in its ability to accurately measure and monitor battery capacity, allowing for efficient utilization and prolonging battery life.
Packaging/Quantity
This product is usually supplied in tape and reel packaging, with a standard quantity of 2500 units per reel.
Specifications
- Operating Voltage: 2.5V - 4.8V
- Battery Capacity Measurement Range: 10mAh - 65Ah
- Communication Interface: I2C
- Temperature Measurement Range: -40°C to +85°C
- Dimensions: 3mm x 4mm x 0.9mm
Detailed Pin Configuration
- VSS: Ground
- SDA: I2C Data Line
- SCL: I2C Clock Line
- VDD: Power Supply
- TS: Temperature Sense Input
- BAT: Battery Voltage Sense Input
- SRP: System Reset Output
- GPOUT: General Purpose Output
- VSS: Ground
- VSS: Ground
- VSS: Ground
- VSS: Ground
Functional Features
- Accurate battery capacity measurement
- Real-time voltage and current monitoring
- Temperature sensing for thermal management
- Programmable alerts and alarms
- Data logging and history tracking
Advantages and Disadvantages
Advantages
- High accuracy in measuring battery capacity
- Low power consumption
- Compact form factor
- Additional features like temperature sensing and voltage monitoring
Disadvantages
- Limited compatibility with certain battery chemistries
- Requires I2C communication interface support in the host device
Working Principles
The BQ27421YZFR-G1B utilizes advanced algorithms to measure the battery's voltage, current, and temperature. It then processes this data to accurately estimate the remaining battery capacity. The IC communicates with the host device through the I2C interface, providing real-time information for battery management.
Detailed Application Field Plans
The BQ27421YZFR-G1B is widely used in various battery-powered applications, including: - Smartphones and tablets - Portable medical devices - Wearable devices - Industrial equipment - Electric vehicles
Detailed and Complete Alternative Models
- BQ27421YZFT-G1: Similar to BQ27421YZFR-G1B but with a different package (12-pin DSBGA)
- BQ27421YZFR-G1A: Previous version with slightly different specifications
- BQ27421YZFT-G2: Enhanced version with extended temperature range (-40°C to +105°C)
These alternative models offer similar functionality and can be considered as alternatives to the BQ27421YZFR-G1B based on specific requirements.
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Liste 10 perguntas e respostas comuns relacionadas à aplicação de BQ27421YZFR-G1B em soluções técnicas
Sure! Here are 10 common questions and answers related to the application of BQ27421YZFR-G1B in technical solutions:
1. What is the BQ27421YZFR-G1B? The BQ27421YZFR-G1B is a fuel gauge and protector IC (Integrated Circuit) designed for use in single-cell Li-Ion or Li-Polymer battery packs.
2. What is the purpose of the BQ27421YZFR-G1B? The BQ27421YZFR-G1B is used to accurately measure and report battery capacity, voltage, current, temperature, and other important parameters in order to optimize battery performance and protect against overcharging or discharging.
3. How does the BQ27421YZFR-G1B communicate with the host system? The BQ27421YZFR-G1B communicates with the host system using the I2C interface, allowing for easy integration into various electronic devices.
4. Can the BQ27421YZFR-G1B be used in portable devices? Yes, the BQ27421YZFR-G1B is commonly used in portable devices such as smartphones, tablets, wearables, and other battery-powered electronics.
5. Does the BQ27421YZFR-G1B support battery pack authentication? Yes, the BQ27421YZFR-G1B supports SHA-256 based battery pack authentication, ensuring that only genuine batteries are used.
6. Can the BQ27421YZFR-G1B accurately estimate remaining battery capacity? Yes, the BQ27421YZFR-G1B uses advanced algorithms to accurately estimate remaining battery capacity, providing accurate information to the user.
7. Is the BQ27421YZFR-G1B capable of detecting battery faults? Yes, the BQ27421YZFR-G1B has built-in fault detection capabilities, allowing it to detect and report battery faults such as overvoltage, undervoltage, and overcurrent conditions.
8. Can the BQ27421YZFR-G1B be used in multi-cell battery packs? No, the BQ27421YZFR-G1B is specifically designed for use in single-cell battery packs and may not be suitable for multi-cell applications.
9. Does the BQ27421YZFR-G1B support temperature compensation? Yes, the BQ27421YZFR-G1B incorporates temperature compensation algorithms to ensure accurate battery capacity measurements across a wide range of temperatures.
10. Is the BQ27421YZFR-G1B compatible with different battery chemistries? The BQ27421YZFR-G1B is primarily designed for Li-Ion and Li-Polymer battery chemistries, and its performance may vary with other battery chemistries. It is recommended to consult the datasheet or contact the manufacturer for specific compatibility information.
Please note that these answers are general and may vary depending on the specific implementation and configuration of the BQ27421YZFR-G1B in different technical solutions.