LC709209FXE-01TBG Battery Fuel Gauge

onsemi’s LC709209F is a fuel gauge IC, gas gauge, battery monitor, or battery gauge for 1-cell (1 series N parallel) lithium-ion/polymer batteries. It is part of the smart LiB gauge family of fuel gauges, which measures the battery relative state of charge (RSOC) using its unique algorithm called HG-CVR2. The HG−CVR2 algorithm provides accurate RSOC information even under unstable conditions (e.g., changes of battery, temperature, loading, aging, and self−discharge.) An accurate RSOC contributes to the operating time of portable devices. The fuel gauge feature of the HG-CVR2 algorithm makes it highly applicable in various applications. This device can immediately start battery measurement by setting a few parameters after the battery is inserted without the long learning cycles that can complicate the application development process.