2
SLUUBH1C – August 2016 – Revised March 2018
Submit Documentation Feedback
Copyright © 2016–2018, Texas Instruments Incorporated
Contents
Contents
Preface
........................................................................................................................................
5
1
Introduction
.........................................................................................................................
7
2
Basic Measurement Systems
.................................................................................................
8
2.1
Voltage
........................................................................................................................
8
2.2
Temperature
..................................................................................................................
8
2.3
Coulombs
.....................................................................................................................
8
2.4
Current
........................................................................................................................
8
3
Factory Calibration
.............................................................................................................
10
3.1
General I
2
C Command Information
......................................................................................
10
3.2
Calibration Overview
.......................................................................................................
10
3.2.1
Method
..............................................................................................................
10
3.2.2
Sequence
...........................................................................................................
10
3.3
Enter CALIBRATION Mode
...............................................................................................
11
3.4
Voltage Calibration
.........................................................................................................
12
3.5
CC Offset
....................................................................................................................
13
3.6
Board Offset
.................................................................................................................
14
3.7
Obtain Raw Calibration Data
.............................................................................................
15
3.8
Current Calibration
.........................................................................................................
16
3.9
Temperature Calibration
...................................................................................................
17
3.10
Floating Point Conversion
.................................................................................................
18
3.11
Exit CALIBRATION Mode
.................................................................................................
19
4
Basic Configuration
............................................................................................................
20
4.1
Operation Config A
.........................................................................................................
20
5
Battery Gauging
.................................................................................................................
21
5.1
ACCUMULATOR Mode
...................................................................................................
21
5.1.1
Total Capacity Update
............................................................................................
21
5.2
STATE-OF-HEALTH (SOH) Mode
.......................................................................................
21
5.2.1
Low State-Of-Health Alert
........................................................................................
21
5.3
End-Of-Service (EOS) Mode
.............................................................................................
22
5.3.1
Initial EOS Learning
...............................................................................................
22
5.3.2
End-Of-Service Detection
........................................................................................
23
5.3.3
End-Of-Service Smoothing
.......................................................................................
23
6
Power Control
....................................................................................................................
25
6.1
Device Functional Modes
.................................................................................................
25
6.2
Flash Updates
..............................................................................................................
27
7
Battery Condition Warnings
.................................................................................................
28
7.1
Battery Low Warning
.......................................................................................................
28
7.2
Temperature Low Warning
................................................................................................
28
7.3
Temperature High Warning
...............................................................................................
28
7.4
Battery Low SOC Warning
................................................................................................
29
7.5
Battery EOS OCV BAD Warning
.........................................................................................
29
8
ALERT Signal
.....................................................................................................................
30
9
Lifetime Data Collection
......................................................................................................
31