BQ27421-G1 Series
System-side(tm) fuel gauge with integrated Sense Resistor | battery gas gauge
Manufacturer: Texas Instruments
Catalog
System-side(tm) fuel gauge with integrated Sense Resistor | battery gas gauge
Key Features
• Single-Cell Li-Ion Battery Fuel GaugeResides on System BoardSupports Embedded or Removable BatteriesPowered Directly from Battery with IntegratedLDOLow-Value Integrated Sense Resistor(7 mΩ, Typical)Easy-to-Configure Fuel Gauging Based onPatented Impedance Track™ TechnologyReports Remaining Capacity and State-of-Charge (SOC) with Smoothing FilterAutomatically Adjusts for Battery Aging, Self-Discharge, Temperature, and Rate ChangesBattery State-of-Health (Aging) EstimationMicrocontroller Peripheral Supports:400-kHz I2C Serial InterfaceConfigurable SOC Interrupt orBattery Low Digital Output WarningInternal Temperature Sensor orHost-Reported TemperatureSingle-Cell Li-Ion Battery Fuel GaugeResides on System BoardSupports Embedded or Removable BatteriesPowered Directly from Battery with IntegratedLDOLow-Value Integrated Sense Resistor(7 mΩ, Typical)Easy-to-Configure Fuel Gauging Based onPatented Impedance Track™ TechnologyReports Remaining Capacity and State-of-Charge (SOC) with Smoothing FilterAutomatically Adjusts for Battery Aging, Self-Discharge, Temperature, and Rate ChangesBattery State-of-Health (Aging) EstimationMicrocontroller Peripheral Supports:400-kHz I2C Serial InterfaceConfigurable SOC Interrupt orBattery Low Digital Output WarningInternal Temperature Sensor orHost-Reported Temperature
Description
AI
The Texas Instruments bq27421-G1 fuel gauge is a minimally configured microcontroller peripheral that provides system-side fuel gauging for single-cell Li-Ion batteries. The device requires very little user configuration and system microcontroller firmware development.
The bq27421-G1 fuel gauge uses the patented Impedance TrackTMalgorithm for fuel gauging, and provides information such as remaining battery capacity (mAh), state-of-charge (%), and battery voltage (mV).
Battery fuel gauging with the bq27421-G1 fuel gauge requires connections only to PACK+ (P+) and PACK– (P–) for a removable battery pack or embedded battery circuit. The tiny 9-ball, 1.62 mm × 1.58 mm, 0.5-mm pitch NanoFree™ chip scale package (DSBGA) is ideal for space-constrained applications.
The Texas Instruments bq27421-G1 fuel gauge is a minimally configured microcontroller peripheral that provides system-side fuel gauging for single-cell Li-Ion batteries. The device requires very little user configuration and system microcontroller firmware development.
The bq27421-G1 fuel gauge uses the patented Impedance TrackTMalgorithm for fuel gauging, and provides information such as remaining battery capacity (mAh), state-of-charge (%), and battery voltage (mV).
Battery fuel gauging with the bq27421-G1 fuel gauge requires connections only to PACK+ (P+) and PACK– (P–) for a removable battery pack or embedded battery circuit. The tiny 9-ball, 1.62 mm × 1.58 mm, 0.5-mm pitch NanoFree™ chip scale package (DSBGA) is ideal for space-constrained applications.
