Texas Instruments BQ27621YZFT-G1A Battery Fuel Gauge

The BQ27621YZFT-G1A from Texas Instruments is a state-of-the-art battery fuel gauge IC designed to provide accurate monitoring of single-cell lithium-ion batteries. This compact, integrated solution is part of Texas Instruments' extensive portfolio of battery management devices and is tailored for portable and wearable technology where space and power efficiency are at a premium.

Featuring TI's patented Impedance Track™ algorithm, the BQ27621YZFT-G1A offers precise battery monitoring by reporting the remaining battery capacity, voltage, and state of charge (SOC). This technology adapts as the battery ages, ensuring accurate fuel gauging over the life of the battery. The device also provides valuable system-side gauging, which means it resides on the system's main board instead of within the battery pack, allowing for design flexibility and the reuse of the gauge across different battery designs.

The BQ27621YZFT-G1A supports a host of critical functions for battery-powered applications, including overcurrent in discharge, short-circuit in charge, and over- and under-voltage protection. This ensures not only the longevity of the battery but also the safety of the devices it powers. The gauge communicates with the host system via an I2C interface, allowing for easy integration into a variety of designs.

This IC comes in a small 9-ball, 1.62 mm x 1.58 mm, 0.5 mm pitch NanoFree™ chip scale package (CSP), which is ideal for space-constrained applications. Its low power consumption and support for a wide range of battery capacities make it an excellent choice for mobile phones, smart watches, fitness trackers, and other portable electronics.

Whether you're a designer looking to extend the battery life of your next project or a manufacturer in need of a reliable battery monitoring solution, the BQ27621YZFT-G1A offers the performance and dependability you expect from Texas Instruments.