Texas Instruments BQ75614-Q1, User Manual

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User’s Guide
BQ79616-Q1, BQ75614-Q1, and BQ79656-Q1
Evaluation Modules
Taylor Vogt
ABSTRACT
The BQ79616-Q1 and BQ75614-Q1 Evaluation Modules user's guide describes the general features, theory of
operation, hardware setup, and use of the BQ79616EVM and BQ75614EVM. Throughout this user's guide, the
abbreviations
BMS021 , EVM , and the term evaluation module are synonymous with the two different variants of
BMS021, BQ79616-Q1 Evaluation Module and BQ75614-Q1 Evaluation Module , unless otherwise noted. When
a difference is noted between the two variants, each variant will be differentiated as BQ79616EVM for the
BQ79616-Q1 Evaluation Module , and the BQ75614EVM for the BQ75614-Q1 Evaluation Module . These EVMs
are evaluation boards for the BQ79616-Q1 and BQ75614-Q1 devices for use in large format lithium-ion battery
pack applications to provide monitoring, protecting, balancing, and communications.
Table of Contents
1 General Description ................................................................................................................................................................ 6
1.1 Key Features...................................................................................................................................................................... 6
1.2 Key Electrical Parameters.................................................................................................................................................. 6
2 Theory of Operation - Stackable BQ79616EVM ................................................................................................................... 7
2.1 Single Board....................................................................................................................................................................... 8
2.2 Stacked Systems............................................................................................................................................................... 8
2.3 Configuring the BQ79616-Q1 EVM to be used for Lower Cell Count Applications............................................................ 8
3 Theory of Operation - Standalone BQ75614EVM ................................................................................................................. 9
4 Connectors ............................................................................................................................................................................ 11
4.1 Primary Input and Output Connectors.............................................................................................................................. 11
5 Quick Start Guide .................................................................................................................................................................. 15
5.1 Required Devices for using the Example Code............................................................................................................... 15
5.2 Power Connections.......................................................................................................................................................... 15
5.3 Connecting the EVM to TMS570 LaunchPad.................................................................................................................. 16
5.4 Stacking BQ79616EVMs.................................................................................................................................................. 16
5.5 Software........................................................................................................................................................................... 16
5.6 GUI................................................................................................................................................................................... 17
6 Physical Dimensions ............................................................................................................................................................ 18
6.1 Board Dimensions............................................................................................................................................................ 18
6.2 Board Mounting................................................................................................................................................................ 18
7 BQ79616EVM Schematic, Assembly, Layout, and BOM ................................................................................................... 19
7.1 Schematic........................................................................................................................................................................ 19
7.2 Assembly.......................................................................................................................................................................... 23
7.3 Layout.............................................................................................................................................................................. 25
7.4 BQ79616EVM-021 Bill of Materials (BOM)...................................................................................................................... 33
8 BQ75614EVM Schematic, Assembly, Layout, and BOM ................................................................................................... 40
8.1 Schematic........................................................................................................................................................................ 40
8.2 Assembly.......................................................................................................................................................................... 44
8.3 Layout.............................................................................................................................................................................. 45
8.4 BQ75614EVM Bill of Materials (BOM)............................................................................................................................. 46
9 BQ79656EVM Schematic, Assembly, Layout, and BOM ................................................................................................... 52
9.1 Schematic........................................................................................................................................................................ 52
9.2 Assembly.......................................................................................................................................................................... 56
www.ti.com Table of Contents
SLUUC37B – JULY 2019 – REVISED OCTOBER 2020
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