BQ27621-G1_16 Datasheet, PDF (2/26 Pages) Texas Instruments – System-Side Fuel Gauge With Dynamic Voltage Correlation

bq27621-G1
SLUSBB3E – DECEMBER 2013 – REVISED JANUARY 2016
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Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Device Comparison Table..................................... 3
6 Pin Configurations and Functions ....................... 3
7 Specifications......................................................... 4
7.1 Absolute Maximum Ratings ...................................... 4
7.2 ESD Ratings ............................................................ 4
7.3 Recommended Operating Conditions....................... 4
7.4 Thermal Information .................................................. 4
7.5 Supply Current .......................................................... 4
7.6 Digital Input and Output DC Characteristics ............. 5
7.7 LDO Regulator, Wake-up, and Auto-Shutdown DC
Characteristics ........................................................... 5
7.8 ADC (Temperature and Cell Measurement)
Characteristics ........................................................... 5
7.9 I²C-Compatible Interface Communication Timing
Characteristics ........................................................... 5
7.10 Typical Characteristics ............................................ 7
8 Detailed Description .............................................. 8
8.1 Overview ................................................................... 8
8.2 Functional Block Diagram ......................................... 8
8.3 Feature Description................................................... 9
8.4 Device Functional Modes.......................................... 9
8.5 Programming............................................................. 9
9 Application and Implementation ........................ 14
9.1 Application Information............................................ 14
9.2 Typical Application ................................................. 14
10 Power Supply Recommendations ..................... 16
10.1 Power Supply Decoupling ..................................... 16
11 Layout................................................................... 17
11.1 Layout Guidelines ................................................. 17
11.2 Layout Example .................................................... 17
12 Device and Documentation Support ................. 18
12.1 Documentation Support ........................................ 18
12.2 Community Resources.......................................... 18
12.3 Trademarks ........................................................... 18
12.4 Electrostatic Discharge Caution ............................ 18
12.5 Glossary ................................................................ 18
13 Mechanical, Packaging, and Orderable
Information ........................................................... 18
4 Revision History
Changes from Revision D (December 2014) to Revision E
Page
• Changed Pin Configurations and Functions .......................................................................................................................... 3
• Added Community Resources ............................................................................................................................................. 18
• Changed Mechanical, Packaging, and Orderable Information ............................................................................................ 18
Changes from Revision C (March 2014) to Revision D
Page
• Added ESD Ratings table, Feature Description section, Device Functional Modes, Application and Implementation
section, Power Supply Recommendations section, Layout section, Device and Documentation Support section, and
Mechanical, Packaging, and Orderable Information section ................................................................................................. 1
• Changed Typical Application to Simplified Schematic and added 1-µF capacitor ................................................................. 1
• Added description for connecting 1-µF capacitor .................................................................................................................. 3
• Added information for connecting GPOUT ............................................................................................................................ 3
Changes from Revision B (January 2014) to Revision C
Page
• Updated command list and algorithm descriptions................................................................................................................. 1
• Updated BIN pin description .................................................................................................................................................. 3
• Updated GPOUT pin description ........................................................................................................................................... 3
• Changed recommend to required......................................................................................................................................... 17
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