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BQ27010是TI公司的一款电池电量监测产品,BQ27010是单节锂电池和锂聚合物电池电量监测计 IC,本页介绍了BQ27010的产品说明、应用、特性等,并给出了与BQ27010相关的TI元器件型号供参考。
BQ27010 - 单节锂电池和锂聚合物电池电量监测计 IC - 电池电量监测 - 电池管理产品 - TI公司(Texas Instruments,德州仪器)
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.
- 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.
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