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BQ27505-J5 Datasheet(PDF) 2 Page - Texas Instruments |
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BQ27505-J5 Datasheet(HTML) 2 Page - Texas Instruments |
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2 / 41 page  bq27505-J5 SLVSAL4 – MARCH 2011 www.ti.com 1 INTRODUCTION ......................................... 1 4 GENERAL DESCRIPTION ............................. 9 4.1 DATA COMMANDS ................................ 10 1.1 FEATURES .......................................... 1 4.2 DATA FLASH INTERFACE ........................ 19 1.2 APPLICATIONS ...................................... 1 4.3 MANUFACTURER INFORMATION BLOCKS ...... 20 1.3 DESCRIPTION ....................................... 1 4.4 ACCESS MODES .................................. 20 2 DEVICE INFORMATION ................................ 3 4.5 SEALING/UNSEALING DATA FLASH ............. 20 2.1 AVAILABLE OPTIONS ............................... 3 4.6 DATA FLASH SUMMARY .......................... 21 2.2 THERMAL INFORMATION .......................... 3 5 FUNCTIONAL DESCRIPTION ........................ 23 2.3 PIN ASSIGNMENT .................................. 4 5.1 FUEL GAUGING ................................... 23 3 ELECTRICAL SPECIFICATIONS ..................... 5 5.2 IMPEDANCE TRACK™ VARIABLES .............. 24 3.1 ABSOLUTE MAXIMUM RATINGS .................. 5 5.3 DETAILED PIN DESCRIPTION .................... 26 3.2 RECOMMENDED OPERATING CONDITIONS ..... 5 5.4 TEMPERATURE MEASUREMENT ................ 29 3.3 POWER-ON RESET ................................. 5 5.5 OVERTEMPERATURE INDICATION .............. 30 3.4 INTERNAL TEMPERATURE SENSOR 5.6 CHARGING AND CHARGE-TERMINATION CHARACTERISTICS ................................ 6 INDICATION ........................................ 30 3.5 HIGH-FREQUENCY OSCILLATOR ................. 6 5.7 POWER MODES ................................... 30 3.6 LOW-FREQUENCY OSCILLATOR .................. 6 5.8 POWER CONTROL ................................ 32 3.7 INTEGRATING ADC (COULOMB COUNTER) 5.9 AUTOCALIBRATION ............................... 33 CHARACTERISTICS ................................ 6 6 APPLICATION-SPECIFIC INFORMATION ......... 33 3.8 ADC (TEMPERATURE AND CELL 6.1 BATTERY PROFILE STORAGE AND SELECTION MEASUREMENT) CHARACTERISTICS ............ 6 ...................................................... 33 6.2 APPLICATION-SPECIFIC FLOW AND CONTROL 3.9 DATA FLASH MEMORY CHARACTERISTICS ..... 7 ...................................................... 34 3.10 400 kHz I2C-COMPATIBLE INTERFACE COMMUNICATION TIMING CHARACTERISTICS 7 COMMUNICATIONS ................................... 34 ........................................................ 8 7.1 I2C INTERFACE .................................... 34 3.11 100 kHz I2C-COMPATIBLE INTERFACE 7.2 I2C Time Out ........................................ 35 COMMUNICATION TIMING CHARACTERISTICS 8 REFERENCE SCHEMATICS ......................... 36 ........................................................ 8 8.1 SCHEMATIC ........................................ 36 2 Contents Copyright © 2011, Texas Instruments Incorporated Submit Documentation Feedback |
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