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BQ27220 ACTIVE Single cell pack/system-side CEDV battery fuel (gas) gauge w/pre-programmed chemistry profiles Low power consumption, battery state-of-health (aging) estimates, internal temperature sensor

Product details

Cell chemistry Li-Ion/Li-Polymer Number of series cells Single Cell Communication interface I2C Battery capacity (min) (mAh) 200 Battery capacity (max) (mAh) 8000 Implementation Pack External capacity indication None Features Impedance Track™ algorithm Operating temperature range (°C) -40 to 85 Rating Catalog
Cell chemistry Li-Ion/Li-Polymer Number of series cells Single Cell Communication interface I2C Battery capacity (min) (mAh) 200 Battery capacity (max) (mAh) 8000 Implementation Pack External capacity indication None Features Impedance Track™ algorithm Operating temperature range (°C) -40 to 85 Rating Catalog
VSON (DRZ) 12 10 mm² 4 x 2.5
  • Single-Cell Li-Ion Battery Fuel Gauge
    • Resides in Battery Pack
    • Low-Value External Sense Resistor
      (10 mΩ Typical)
    • One Time Programmable (OTP) Configuration Non-Volatile Memory (NVM)
    • Powered Directly from Battery with Integrated LDO
    • 400-kHz I2C™ Serial Interface
    • Internal Temperature Sensor or
      Host-reported Temperature
  • Battery Fuel Gauging Based on Patented Impedance Track™ Technology
    • Reports Remaining Capacity and State of Charge (SOC) with Smoothing Filter
    • Automatically Adjusts for Battery Aging, Self-discharge, Temperature, and Rate Changes
    • Battery State of Health (Aging) Estimation
  • Single-Cell Li-Ion Battery Fuel Gauge
    • Resides in Battery Pack
    • Low-Value External Sense Resistor
      (10 mΩ Typical)
    • One Time Programmable (OTP) Configuration Non-Volatile Memory (NVM)
    • Powered Directly from Battery with Integrated LDO
    • 400-kHz I2C™ Serial Interface
    • Internal Temperature Sensor or
      Host-reported Temperature
  • Battery Fuel Gauging Based on Patented Impedance Track™ Technology
    • Reports Remaining Capacity and State of Charge (SOC) with Smoothing Filter
    • Automatically Adjusts for Battery Aging, Self-discharge, Temperature, and Rate Changes
    • Battery State of Health (Aging) Estimation

The Texas Instruments bq27411-G1 device is a battery fuel gauging solution for single-cell Li-Ion battery packs. The device requires minimal configuration and uses One Time Programmable (OTP) Non-Volatile Memory (NVM) to avoid an initialization download by the system processor.

The fuel gauge uses the patented Impedance Track™ algorithm for fuel gauging, and provides information such as remaining battery capacity (mAh), state-of-charge (%), and battery voltage (mV).

The small, 12-pin, 2.50 mm × 4.00 mm, Small Outline No-Lead (SON) package is ideal for space-constrained applications.

The Texas Instruments bq27411-G1 device is a battery fuel gauging solution for single-cell Li-Ion battery packs. The device requires minimal configuration and uses One Time Programmable (OTP) Non-Volatile Memory (NVM) to avoid an initialization download by the system processor.

The fuel gauge uses the patented Impedance Track™ algorithm for fuel gauging, and provides information such as remaining battery capacity (mAh), state-of-charge (%), and battery voltage (mV).

The small, 12-pin, 2.50 mm × 4.00 mm, Small Outline No-Lead (SON) package is ideal for space-constrained applications.

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Type Title Date
* Data sheet bq27411-G1 Single-Cell Li-Ion Battery Fuel Gauge for Battery Pack Integration datasheet (Rev. D) PDF | HTML 02 Jan 2016
Application note Method for TI Gauge to Avoid SOC Jump on Smart Phone Application 25 Feb 2022
Application note Enhanced Resolution Gauging for Low Current Applications Using Scaling 26 Oct 2016
User guide bq27411EVM System-Side Impedance Track Fuel Gauge (Rev. A) 31 Jul 2016
User guide bq27411-G1 Technical Reference Manual (Rev. B) 05 Jun 2015

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