Product details

Cell chemistry Li-Ion/Li-Polymer Number of series cells Single Cell Communication interface I2C Battery capacity (Min) (mAh) 300 Battery capacity (Max) (mAh) 6000 Implementation Pack External capacity indication None Features Impedance Track™ algorithm Operating temperature range (C) -20 to 70 Cell balancing
Cell chemistry Li-Ion/Li-Polymer Number of series cells Single Cell Communication interface I2C Battery capacity (Min) (mAh) 300 Battery capacity (Max) (mAh) 6000 Implementation Pack External capacity indication None Features Impedance Track™ algorithm Operating temperature range (C) -20 to 70 Cell balancing
VSON (DRK) 10 12 mm² 4 x 3
  • HDQ (bq27010) or I2C (bq27210) Communication
  • Reports Accurate Time-to-Empty At Both Measured and Host-Requested Load Values
  • Reports Available Capacity Compensated for Discharge Rate, Temperature, and Age
  • End-of-Discharge Voltage Compensated for Discharge Rate and Temperature
  • Automatic Capacity Reduction with Age
  • Reports Temperature, Voltage, and Current
  • High Accuracy Charge and Discharge Current Integration with Automatic Offset Calibration
  • Requires No User Calibration
  • Programmable Input/Output Port
  • Internal User EEPROM Configuration Memory
  • Uploadable Coefficients Allows Host-Side Use with Multiple Pack Characteristics
  • Stable Oscillator Without External Components
  • Dynamic End-of-Discharge Detection Delay to Allow Use in a High-Dynamic Load Environment
  • Automatic Sleep Mode When Communication Lines are Low
  • Available in a Small 3 mm x 4 mm QFN Package
  • Five Low-Power Operating Modes
    • Active: < 90 µA
    • Sleep: < 2.5 µA
    • Ship: < 2 µA (bq27010 only)
    • Hibernate: < 1.5 µA
    • Data Retention: < 20 nA
  • APPLICATIONS
    • PDA
    • Smart Phones
    • MP3 Players
    • Digital Cameras
    • Internet Appliances
    • Handheld Devices

bqJUNIOR is a trademark of Texas Instruments.

  • HDQ (bq27010) or I2C (bq27210) Communication
  • Reports Accurate Time-to-Empty At Both Measured and Host-Requested Load Values
  • Reports Available Capacity Compensated for Discharge Rate, Temperature, and Age
  • End-of-Discharge Voltage Compensated for Discharge Rate and Temperature
  • Automatic Capacity Reduction with Age
  • Reports Temperature, Voltage, and Current
  • High Accuracy Charge and Discharge Current Integration with Automatic Offset Calibration
  • Requires No User Calibration
  • Programmable Input/Output Port
  • Internal User EEPROM Configuration Memory
  • Uploadable Coefficients Allows Host-Side Use with Multiple Pack Characteristics
  • Stable Oscillator Without External Components
  • Dynamic End-of-Discharge Detection Delay to Allow Use in a High-Dynamic Load Environment
  • Automatic Sleep Mode When Communication Lines are Low
  • Available in a Small 3 mm x 4 mm QFN Package
  • Five Low-Power Operating Modes
    • Active: < 90 µA
    • Sleep: < 2.5 µA
    • Ship: < 2 µA (bq27010 only)
    • Hibernate: < 1.5 µA
    • Data Retention: < 20 nA
  • APPLICATIONS
    • PDA
    • Smart Phones
    • MP3 Players
    • Digital Cameras
    • Internet Appliances
    • Handheld Devices

bqJUNIOR is a trademark of Texas Instruments.

The bqJUNIOR™ series are highly accurate stand-alone single-cell Li-Ion and Li-Pol battery capacity monitoring and reporting devices targeted at space-limited, portable applications. The IC monitors a voltage drop across a small current sense resistor connected in series with the battery to determine charge and discharge activity of the battery. Compensations for battery age, temperature, self-discharge, and discharge rate are applied to the capacity measurments to provide available time-to-empty information across a wide range of operating conditions. Battery capacity is automatically recalibrated, or learned, in the course of a discharge cycle from full to empty. Internal registers include current, capacity, time-to-empty, state-of-charge, cell temperature and voltage, status, and more.

The bqJUNIOR can operate directly from single-cell Li-Ion and Li-Pol batteries and communicates to the system over a HDQ one-wire or I2C serial interface.

The bqJUNIOR™ series are highly accurate stand-alone single-cell Li-Ion and Li-Pol battery capacity monitoring and reporting devices targeted at space-limited, portable applications. The IC monitors a voltage drop across a small current sense resistor connected in series with the battery to determine charge and discharge activity of the battery. Compensations for battery age, temperature, self-discharge, and discharge rate are applied to the capacity measurments to provide available time-to-empty information across a wide range of operating conditions. Battery capacity is automatically recalibrated, or learned, in the course of a discharge cycle from full to empty. Internal registers include current, capacity, time-to-empty, state-of-charge, cell temperature and voltage, status, and more.

The bqJUNIOR can operate directly from single-cell Li-Ion and Li-Pol batteries and communicates to the system over a HDQ one-wire or I2C serial interface.

Technical documentation

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Type Title Date
* Data sheet Li-Ion and Li-Pol Battery Gas Gauge IC for Portable Apps (bqJUNIOR) datasheet (Rev. B) 16 Jan 2007
User guide bq27x10EVM Single Cell Battery Fuel Gauge Evaluation Module (Rev. A) 04 Oct 2013
Application note Feature Set Comparison of bq27x00, bq27x10, bq27500, and bq27510 (Rev. A) 02 Dec 2008
Application note ESD and RF Mitigation in Handheld Battery Pack Electronics 06 Mar 2008
Application note Single Cell Gas Gauge Circuit Design 22 Feb 2008
Application note Single Cell Impedance Track Printed-Circuit Board Layout 22 Feb 2008
Analog design journal Host-Side Gas-Gauge-System Design Considerations for Single-Cell Handheld Apps 12 Oct 2007
Application note Transition From Prior bqJunior Gauges to the bq27x10 17 Jul 2007
Application note Configuring the bq27010/210 for Gas Gauge Applications 23 Feb 2007
Application note Multicell Li-Ion and Li-Pol Battery Gas-Gauge Application Using the bqJunior 26 May 2006
Application note Using the bq27x00 With a Primary Cell Battery 15 Dec 2005
Application note Building a Superior Battery Monitor with the bq27x00 20 Jun 2005

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Driver or library

BQ27XXXSW-LINUX — Linux Driver for BQ27XXX

The Linux driver supports the BQ27x series of Battery Fuel Gauges. The Linux driver supports communication through the I2C/HDQ bus and interfaces with the power supply sub-system to monitor battery properties.

 

Linux Mainline Status

Available in Linux Main line: Yes
Available through git.ti.com: N/A

(...)

Support software

bq27x10 Tester Software

SLUC078.ZIP (2289 KB)
Support software

bq27x10 evaluation software

SLUC087.ZIP (2431 KB)
Package Pins Download
VSON (DRK) 10 View options

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