Introducing the BQ27421YZFR-G1B Battery Fuel Gauge

The BQ27421YZFR-G1B from Texas Instruments is a cutting-edge battery fuel gauge solution, designed to provide highly accurate power management for single-cell Li-Ion battery packs. This compact, efficient, and reliable IC is an essential component for portable applications where battery life estimation is crucial.

Key Features

• System-Side Fuel Gauge: The BQ27421YZFR-G1B resides on the system side, which means it can be placed anywhere in the system and does not require the battery to be removed for calibration or setup, enhancing design flexibility.
• Impedance Track™ Technology: This advanced technology enables the fuel gauge to provide battery state-of-charge (SOC) readings with a high degree of accuracy, which is vital for user experience and battery-dependent application performance.
• Low Power Consumption: It is optimized for power-sensitive applications, ensuring minimal drain on the battery it is monitoring, thereby extending the operational life of the device.
• Compact Form Factor: The BQ27421YZFR-G1B comes in a small 9-pin, 1.62 x 1.58 mm², 0.5 mm pitch SON package that can be easily integrated into space-constrained designs.

Applications

The BQ27421YZFR-G1B is ideal for a wide range of portable electronics, such as:

• Smartphones and tablets
• Wearable technology
• Portable gaming devices
• Wireless speakers and headphones
• Health and fitness trackers

Technical Specifications

With an operating temperature range of -40°C to +85°C, the BQ27421YZFR-G1B maintains performance across a wide range of conditions. It supports batteries with an operating voltage range of 2.5V to 4.5V, making it versatile for various single-cell Li-Ion battery configurations.

Easy Integration

Engineers will appreciate the ease of integration offered by the BQ27421YZFR-G1B. It requires minimal external components, which not only simplifies the design process but also reduces time to market for new products. Its I2C interface allows for straightforward communication with the host processor, ensuring seamless integration into existing designs.

Choose the BQ27421YZFR-G1B for your next project and benefit from Texas Instruments' expertise in power management and battery fuel gauge technology.