bq27421-G1 Overview
The Texas Instruments bq27421-G1 fuel gauge is a minimally configured microcontroller peripheral that provides system-side fuel gauging for single-cell LiIon batteries. The device requires very little user configuration and system microcontroller firmware development. The bq27421-G1 fuel gauge uses the patented Impedance TrackTM algorithm for fuel gauging, and provides information such as remaining battery capacity...
bq27421-G1 Key Features
- 1 Single-Cell Li-Ion Battery Fuel Gauge
- Resides on System Board
- Supports Embedded or Removable Batteries
- Powered Directly from Battery with Integrated LDO
- Low-Value Integrated Sense Resistor (7 mΩ, Typical)
- Easy-to-Configure Fuel Gauging Based on Patented Impedance Track™ Technology
- Reports Remaining Capacity and State-ofCharge (SOC) with Smoothing Filter
- Automatically Adjusts for Battery Aging, SelfDischarge, Temperature, and Rate Changes
- Battery State-of-Health (Aging) Estimation
- Microcontroller Peripheral Supports