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bq27210 Datasheet Li-ion And Li-pol Battery Gas Gauge

Manufacturer: Texas Instruments

Overview: bq27010, bq27210 www.ti.com SLUS707B – APRIL 2006 – REVISED JANUARY 2007 Li-Ion AND Li-Pol BATTERY GAS GAUGE IC FOR PORTABLE APPLICATIONS.

This datasheet includes multiple variants, all published together in a single manufacturer document.

General Description

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.

Key Features

  • 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 Offs.

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