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BQ26501 - Li-Ion and Li-Pol Battery Gas Gauge

General Description

The bq26501, the first in the bqJUNIORt family of advanced gas gauge device for handhald applications, is a highly accurate standalone single-cell Li-Ion and Li-Pol battery capacity monitoring and reporting device targeted at space limited portable applications.

Key Features

  • D Reports Accurate State-of-Charge in Li-Ion and Li-Pol Cells, No System Processor Calculations Needed D Communicates Directly With the Integrated HDQ Engine in TI OMAPt Processors D Reports Cell Temperature and Voltage D High-Accuracy Coulometric Charge and Discharge Current Integration with Automatic Offset Cancellation D Requires No Offset Calibration D Programmable Input/Output Port D Internal Time-Base Eliminates External Crystal Oscillator D Four Automatic Low-Power Operating Modes.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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bq26501 ą SLUS586B − OCTOBER 2003 − REVISED MARCH 2004 SINGLEĆCELL LIĆION AND LIĆPOL BATTERY GAS GAUGE IC FOR HANDHELD APPLICATIONS (bqJUNIORt FAMILY) FEATURES D Reports Accurate State-of-Charge in Li-Ion and Li-Pol Cells, No System Processor Calculations Needed D Communicates Directly With the Integrated HDQ Engine in TI OMAPt Processors D Reports Cell Temperature and Voltage D High-Accuracy Coulometric Charge and Discharge Current Integration with Automatic Offset Cancellation D Requires No Offset Calibration D Programmable Input/Output Port D Internal Time-Base Eliminates External Crystal Oscillator D Four Automatic Low-Power Operating Modes − Active: < 100 µA − Sleep: < 2.5 µA − Ship: < 1.7 µA − Hibernate: < 1.