BQ27210中文资料适用于便携应用、带 I2C 接口的锂离子和锂聚合物电池电量监测计 IC数据手册TI规格书

描述 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. 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.

特性 Features

• HDQ (bq27010) or I2C (bq27210) Communication
• Reports Available Capacity Compensated for Discharge Rate, Temperature, and Age
• Automatic Capacity Reduction with Age
• High Accuracy Charge and Discharge Current Integration with Automatic Offset Calibration
• Programmable Input/Output Port
• Uploadable Coefficients Allows Host-Side Use with Multiple Pack Characteristics
• Dynamic End-of-Discharge Detection Delay to Allow Use in a High-Dynamic Load Environment
• Available in a Small 3 mm x 4 mm QFN Package
• Active:
• PDA
• MP3 Players
• Internet Appliances
• Handheld Devices

bqJUNIOR is a trademark of Texas Instruments.