bq27441-G1 Battery Fuel Gauge

Product Highlights > bq27441-G1 Battery Fuel Gauge

            bq27441-G1 Battery Fuel Gauge 
                    System-Side Impedance Track™ battery fuel gas gauge from Texas Instruments
    

Image of Texas Instruments' bq27441-G1 Battery Fuel Gauge The Texas Instruments' bq27441-G1 is an easy-to-configure microcontroller peripheral that provides system-side fuel gauging for single-cell Li-Ion batteries. The device requires minimal user configuration and system microcontroller firmware development.

The bq27441-G1 uses the patented Impedance Track™ algorithm for fuel gauging, and provides information such as remaining battery capacity (mAh), state-of-charge (%), and battery voltage (mV). Battery fuel gauging with the bq27441-G1 requires connections only to PACK+ (P+) and PACK– (P–) for a removable battery pack or embedded battery circuit. The tiny 12-pin 2.5 × 4 mm SON package is ideal for space-constrained applications.

Applications include smartphones, feature phones, tablets, digital still and video cameras, handheld terminals, and MP3 or multimedia players.

Features
Single series cell Li-Ion battery fuel gauge Resides on system board Supports embedded or removable batteries Powered directly from battery with integrated LDO Supports a low-value external sense resistor (10 mΩ) Easy-to-configure fuel gauging based on patented impedance track technology Reports remaining capacity and State of Charge (SOC) with smoothing filter Automatically adjusts for battery aging, self-discharge, temperature, and rate changes Battery state of health (aging) estimation		Microcontroller peripheral supports: 400 kHz I²C serial interface Configurable SOC interrupt, or battery low digital output warning Internal temperature sensor or host reported temperature Small 12-pin 2.5 × 4 mm SON package