BQ27531-G1_16 Datasheet, PDF (2/34 Pages) Texas Instruments – Battery Management Unit Impedance Track Fuel Gauge

bq27531-G1
SLUSBE7C – MARCH 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 Options....................................................... 3
6 Pin Configuration 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 Electrical Characteristics: Supply Current................. 5
7.6 Digital Input and Output DC Characteristics ............. 5
7.7 Power-On Reset........................................................ 5
7.8 2.5-V LDO Regulator ................................................ 5
7.9 Internal Clock Oscillators .......................................... 5
7.10 ADC (Temperature and Cell Measurement)
Characteristics ........................................................... 6
7.11 Integrating ADC (Coulomb Counter)
Characteristics ........................................................... 6
7.12 Data Flash Memory Characteristics........................ 6
7.13 I²C-Compatible Interface Communication Timing
Characteristics ........................................................... 7
7.14 Typical Characteristics ............................................ 8
8 Detailed Description .............................................. 9
8.1 Overview ................................................................... 9
8.2 Functional Block Diagram ....................................... 10
8.3 Feature Description................................................. 11
8.4 Device Functional Modes........................................ 12
8.5 Programming........................................................... 16
9 Application and Implementation ........................ 21
9.1 Application Information............................................ 21
9.2 Typical Application ................................................. 21
10 Power Supply Recommendations ..................... 26
10.1 Power Supply Decoupling ..................................... 26
11 Layout................................................................... 26
11.1 Layout Guidelines ................................................. 26
11.2 Layout Example .................................................... 27
12 Device and Documentation Support ................. 28
12.1 Documentation Support ........................................ 28
12.2 Community Resources.......................................... 28
12.3 Trademarks ........................................................... 28
12.4 Electrostatic Discharge Caution ............................ 28
12.5 Glossary ................................................................ 28
13 Mechanical, Packaging, and Orderable
Information ........................................................... 28
4 Revision History
Changes from Revision B (September 2015) to Revision C
Page
• Changed ESD Ratings ........................................................................................................................................................... 4
Changes from Revision A (June 2015) to Revision B
Page
• Changed a Pin Functions description to correct the TRM link ............................................................................................... 3
• Changed Figure 6 ................................................................................................................................................................ 13
• Added Figure 7 .................................................................................................................................................................... 14
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