bq27220 Description
The Texas Instruments bq27220 battery fuel gauge is a single-cell gauge that requires minimal userconfiguration and system microcontroller firmware development, leading to quick system bring-up. The bq27220 device uses the pensated End-ofDischarge Voltage (CEDV) algorithm for fuel gauging, and provides information such as remaining battery capacity (mAh), state-of-charge (%), runtime-to-empty (min), battery voltage...
bq27220 Key Features
- 1 Single-Cell Li-Ion Battery Fuel Gauge
- Resides in Pack or on System Board
- Supports Embedded or Removable Batteries
- Powers Directly from Battery with Integrated LDO
- Supports a Low-Value (10-mΩ) External Sense Resistor
- Ultra-Low Power Consumption in NORMAL (50 µA) and SLEEP (9 µA) Modes
- Battery Fuel Gauging Based on pensated End-of-Discharge Voltage (CEDV) Technology
- Reports Remaining Capacity and State-ofCharge (SOC) with Smoothing Filter
- Adjusts Automatically for Battery Aging, SelfDischarge, Temperature, and Rate Changes
- Provides Battery State-of-Health (Aging) Estimation