Texas Instruments BMS034E1, Руководство пользователя

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User’s Guide
BQ25672 Evaluation Module
ABSTRACT
This user's guide describes the characteristics, operation, and functionality of the BQ25672 Evaluation Module
(EVM). The document also describes the equipment, test setup, and software required to operate the EVM. A
complete schematic diagram, printed-circuit board (PCB) layouts, and bill of materials (BOM) are also included in
this document.
Throughout this user's guide, the abbreviations and terms EVM, BQ25672EVM, BMS034, and evaluation
module are synonymous with the BQ25672 EVM. Note that the BQ25672 EVM is not yet available for order.
WARNING
Hot surface! Contact may cause burns. Do not touch!
Some components may reach high temperatures >55°C when the board is powered on. The user must
not touch the board at any point during operation or immediately after operating, as high temperatures
may be present.
Table of Contents
1 Introduction ............................................................................................................................................................................. 3
1.1 EVM Features.................................................................................................................................................................... 3
1.2 I/O Descriptions.................................................................................................................................................................. 4
1.3 Recommended Operating Conditions................................................................................................................................ 6
2 Test Setup and Results ......................................................................................................................................................... 7
2.1 Equipment.......................................................................................................................................................................... 7
2.2 Equipment Setup................................................................................................................................................................ 7
2.3 Software Setup................................................................................................................................................................... 8
2.4 Test Procedure................................................................................................................................................................... 9
3 PCB Layout Guidelines ........................................................................................................................................................ 11
4 Board Layout, Schematic and Bill of Materials .................................................................................................................. 12
4.1 BMS034E1 Board Layout................................................................................................................................................. 12
4.2 BQ25672EVM (BMS034E1-004) Schematic.................................................................................................................... 16
4.3 Bill of Materials ................................................................................................................................................................ 18
5 Revision History ................................................................................................................................................................... 23
List of Figures
Figure 2-1. Equipment Test Setup for Testing Battery Charging.................................................................................................. 8
Figure 4-1. BMS034E2/A Top Layer.......................................................................................................................................... 12
Figure 4-2. BMS034E2/A Signal Layer 1................................................................................................................................... 13
Figure 4-3. BMS034E2/A Signal Layer 2................................................................................................................................... 14
Figure 4-4. BMS034E2/A Bottom Layer.................................................................................................................................... 15
Figure 4-5. BQ25672EVM (BMS034E2/A-004) Schematic Page 1........................................................................................... 16
Figure 4-6. BQ25672EVM (BMS034E2/A-004) Schematic Page 2........................................................................................... 17
List of Tables
Table 1-1. Device Data Sheet...................................................................................................................................................... 3
Table 1-2. EVM Connections....................................................................................................................................................... 4
Table 1-3. EVM Shunt and Switch Installation............................................................................................................................. 4
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SLUUCF3A – DECEMBER 2020 – REVISED OCTOBER 2021
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