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BQ27200DRKRG4 Datasheet(PDF) 1 Page - Texas Instruments |
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BQ27200DRKRG4 Datasheet(HTML) 1 Page - Texas Instruments |
1 / 31 page www.ti.com FEATURES APPLICATIONS DESCRIPTION bq27000, bq27200 SLUS556D – SEPTEMBER 2004 – REVISED MARCH 2006 SINGLE CELL Li-Ion AND Li-Pol BATTERY GAS GAUGE IC FOR PORTABLE APPLICATIONS (bqJUNIOR) • PDA • HDQ (bq27000) or I2C (bq27200) Communication • Smart Phones • MP3 Players • Reports Accurate Time-to-Empty With Measured Load and Historical Maximum and • Digital Cameras Standby Loads • Internet Appliances • Reports Temperature, Voltage, and Current • Handheld Devices • High Accuracy Charge and Discharge Current Integration with Automatic Offset Calibration • Requires No User Calibration The bqJUNIOR™ series are highly accurate stand-alone single-cell Li-Ion and Li-Pol battery • Programmable Input/Output Port capacity monitoring and reporting devices targeted at • Internal User EEPROM Configuration Memory space-limited, portable applications. The IC monitors • Automatic Capacity Reduction With Age a voltage drop across a small current sense resistor connected in series with the battery to determine • Stable Oscillator Without External charge and discharge activity of the battery. Components Compensations for battery temperature, • Dynamic End-of-Discharge Detection Delay to self-discharge, and discharge rate are applied to the Allow Use in a High-Dynamic Load capacity measurments to provide available Environment time-to-empty information across a wide range of • Automatic Sleep Mode When Communication operating conditions. Battery capacity is automatically recalibrated, or learned, in the course of a discharge Lines are Low cycle from full to empty. Internal registers include • Available in a Small 3 mm x 4 mm QFN current, capacity, time-to-empty, state-of-charge, cell Package temperature and voltage, status, and more. • Five Low-Power Operating Modes The bqJUNIOR can operate directly from single-cell – Active: < 90 µA Li-Ion and Li-Pol batteries and communicates to the – Sleep: < 2.5 µA system over a HDQ one-wire or I2C serial interface. – Ship: < 2 µA (bq27000 only) – Hibernate: < 1.5 µA – Data Retention: < 20 nA 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. Copyright © 2004–2006, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
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