Table of Contents
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1.1 About This Manual
This manual discusses the modules and peripherals of the BQ27220 device, and how each is used to build a
complete battery pack fuel gauge solution. For further information, refer to the BQ27220 System-Side CEDV
Fuel Gauge Data Sheet (SLUSCB7).
1.2 Formatting conventions used in this document:
Information Type
Commands
Data Memory
Register bits and flags
Data Memory bits
Modes and states
1.3 Related Documentation from Texas Instruments
To obtain a copy of any of the following TI documents, go to the TI Web site at www.ti.com.
1. BQ27220 System-Side CEDV Fuel Gauge Data Sheet (SLUSCB7)
2. Going to Production with the BQ275xx Application Report (SLUA449)
3. Host System Calibration Method Application Report (SLUA640)
1.4 Trademarks
MathCAD
™
is a trademark of MathSoft, Inc.
All trademarks are the property of their respective owners.
SLUUBD4A – APRIL 2016 – REVISED NOVEMBER 2022
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Formatting Convention
Italics with parentheses and no breaking spaces
Italics, bold, and breaking spaces
Brackets and italics
Brackets, italics, and bold
ALL CAPITALS
Copyright © 2022 Texas Instruments Incorporated
Read This First
Example
RemainingCapacity() command
Design Capacity data
[TDA] bit
[LED1] bit
UNSEALED mode
Read This First
Preface
BQ27220
7
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