BQ27426 Overview
The Texas Instruments BQ27426 battery fuel gauge is a single-cell gauge that requires minimal userconfiguration and system microcontroller firmware development, leading to quick system bring-up. Three chemistry profiles are preprogrammed to enable minimum user-configuration, and to help manage customer inventory across projects with different battery chemistries. The BQ27426 battery fuel gauge has very low sleep...
BQ27426 Key Features
- Single-cell Li-ion battery fuel gauge
- Resides on system board
- Supports embedded or removable batteries
- Powers directly from the battery with integrated
- Supports a low-value external sense resistor
- Ultra low 9 μA operating current when the load is
- Battery fuel gauging based on patented
- Provides three selectable preprogrammed profiles for 4.2-V, 4.35-V, and 4.4-V cells
- Reports remaining capacity and state-of-charge (SOC) with smoothing filter
- Adjusts automatically for battery aging, selfdischarge, temperature, and rate changes