BQ27210 - 用于便携应用领域的锂电池和锂聚合物电池电量监测计 IC (bqJUNIOR)

BQ27210是TI德州仪器公司的一款电池电量监测产品，BQ27210是用于便携应用领域的锂电池和锂聚合物电池电量监测计 IC (bqJUNIOR)，本站介绍了BQ27210的封装应用图解、特点和优点、功能等，并给出了与BQ27210相关的TI元器件型号供参考。

BQ27210 - 用于便携应用领域的锂电池和锂聚合物电池电量监测计 IC (bqJUNIOR) - 电池电量监测 - 电池管理产品 - 德州仪器

产品描述

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.

产品特性

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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