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BQ27350PWR Datasheet(PDF) 2 Page - Texas Instruments |
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BQ27350PWR Datasheet(HTML) 2 Page - Texas Instruments |
2 / 33 page www.ti.com Contents bq27350 Single Cell Li-Ion Battery Manager With Impedance Track Fuel Gauge Technology SLUS754 – MARCH 2007 1 INTRODUCTION .......................................... 1 4.1 DATA COMMANDS .................................. 8 1.1 FEATURES ........................................... 1 4.2 EXTENDED DATA COMMANDS ................... 13 1.2 APPLICATIONS ...................................... 1 4.3 DATA FLASH INTERFACE ......................... 16 1.3 DESCRIPTION ....................................... 1 4.4 MANUFACTURER INFORMATION BLOCKS ...... 16 2 DEVICE INFORMATION ................................. 3 4.5 ACCESS MODES ................................... 17 2.1 AVAILABLE OPTIONS ............................... 3 4.6 SEALING/UNSEALING DATA FLASH ACCESS ... 17 2.2 PIN DIAGRAM ........................................ 3 4.7 DATA FLASH SUMMARY ........................... 17 2.3 TERMINAL FUNCTIONS ............................. 3 5 FUNCTIONAL DESCRIPTION ........................ 19 3 ELECTRICAL SPECIFICATIONS ...................... 4 5.1 FUEL GAUGING .................................... 19 3.1 ABSOLUTE MAXIMUM RATINGS ................... 4 5.2 IMPEDANCE TRACK VARIABLES ................. 20 3.2 RECOMMENDED OPERATING CONDITIONS ...... 4 5.3 TEMPERATURE MEASUREMENT ................. 21 3.3 POWER-ON RESET .................................. 4 5.4 OVER-TEMPERATURE INDICATION .............. 22 5.5 CHARGING AND CHARGE TERMINATION 3.4 TEMPERATURE SENSOR CHARACTERISTICS ... 4 INDICATION ......................................... 22 3.5 LOW FREQUENCY OSCILLATOR ................... 5 5.6 POWER MODES .................................... 22 3.6 HIGH FREQUENCY OSCILLATOR .................. 5 5.7 POWER CONTROL ................................. 24 3.7 INTEGRATING ADC (COULOMB COUNTER) CHARACTERISTICS ................................. 5 5.8 AUTOCALIBRATION ................................ 25 3.8 ADC (TEMPERATURE AND CELL VOLTAGE) 6 COMMUNICATIONS .................................... 25 CHARACTERISTICS ................................. 5 6.1 I2C INTERFACE ..................................... 26 3.9 I2C-COMPATIBLE INTERFACE TIMING 6.2 AUTHENTICATION ................................. 27 CHARACTERISTICS ................................. 5 7 REFERENCE SCHEMATIC ............................ 27 4 GENERAL DESCRIPTION .............................. 7 2 Contents Submit Documentation Feedback |
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