Datasheet > 27210

27210

更新时间： 2022-04-23 23:00:11

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德州仪器 - TI		电池便携式
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Li-Ion AND Li-Pol BATTERY GAS GAUGE IC FOR PORTABLE APPLICATIONS (bqJUNIOR)

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27210 数据手册

bq27010, bq27210

www.ti.com

SLUS707B–APRIL 2006–REVISED JANUARY 2007

Li-Ion AND Li-Pol BATTERY GAS GAUGE IC FOR PORTABLE APPLICATIONS

(bqJUNIOR)

FEATURES

–

Ship: < 2 µA (bq27010 only)

Hibernate: < 1.5 µA

•

HDQ (bq27010) or I²C (bq27210)

Communication

Data Retention: < 20 nA

Reports Accurate Time-to-Empty At Both

Measured and Host-Requested Load Values

APPLICATIONS

•

PDA

Smart Phones

MP3 Players

Digital Cameras

Internet Appliances

Handheld Devices

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

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

•

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

operating

conditions.

Battery

capacity

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.

•

Automatic Sleep Mode When Communication

Lines are Low

Available in a Small 3 mm x 4 mm QFN

Package

Five Low-Power Operating Modes

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.

–

Active: < 90 µA

Sleep: < 2.5 µA

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas

Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

bqJUNIOR is a trademark of Texas Instruments.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

12 3 4 5 6 7...30

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