Texas Instruments BQ77207, Руководство пользователя

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User’s Guide
BQ77207 Evaluation Module
ABSTRACT
The BQ77207EVM evaluation module (EVM) is a complete evaluation system for the BQ77207, a 3-series to
7-series cell Li-Ion battery protection integrated circuit. The EVM consists of a BQ77207 circuit module which
is used for simple evaluation of the BQ77207 protection function. The circuit module includes one BQ77207
integrated circuit (IC), thermistor, and all other onboard components necessary to signal the condition from
overcharge, overdischarge, and overtemperature in a 7-series cell Li-Ion or Li-Polymer battery pack. The circuit
module connects directly across the cells in a battery, or can be connected with a power supply and the included
cell simulator resistors.
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Table of Contents
1 Features ................................................................................................................................................................................... 3
1.1 Kit Contents........................................................................................................................................................................ 3
1.2 Ordering Information.......................................................................................................................................................... 3
1.3 BQ77207 Circuit Module Performance Specification Summary......................................................................................... 3
1.4 Required Equipment.......................................................................................................................................................... 3
2 BQ77207 EVM Getting Started Guide .................................................................................................................................... 4
2.1 Before You Begin............................................................................................................................................................... 4
2.2 Warnings and Cautions...................................................................................................................................................... 4
2.3 Quick Start.......................................................................................................................................................................... 4
3 BQ77207 Circuit Module Use ................................................................................................................................................. 6
3.1 Cell Simulator..................................................................................................................................................................... 6
3.2 Reducing the Cell Count.................................................................................................................................................... 6
3.3 Connecting Cells................................................................................................................................................................ 6
3.4 Hardware Configuration..................................................................................................................................................... 7
4 BQ77207EVM Circuit Module Physical Construction .......................................................................................................... 8
4.1 Board Layout...................................................................................................................................................................... 8
4.2 Bill of Materials................................................................................................................................................................. 10
4.3 Schematics....................................................................................................................................................................... 11
5 Related Documents from Texas Instruments ..................................................................................................................... 13
6 Revision History ................................................................................................................................................................... 13
List of Figures
Figure 2-1. EVM Connection for Basic Operation........................................................................................................................ 5
Figure 4-1. Top Silk Screen......................................................................................................................................................... 8
Figure 4-2. Top Assembly............................................................................................................................................................ 8
Figure 4-3. Top Layer................................................................................................................................................................... 8
Figure 4-4. Bottom Layer............................................................................................................................................................. 9
Figure 4-5. Bottom Silk Screen.................................................................................................................................................... 9
Figure 4-6. Bottom Assembly...................................................................................................................................................... 9
Figure 4-7. Schematic Diagram................................................................................................................................................. 11
Figure 4-8. Cell Simulator.......................................................................................................................................................... 12
List of Tables
Table 1-1. Ordering Information................................................................................................................................................... 3
Table 1-2. Performance Specification Summary.......................................................................................................................... 3
Table 3-1. Reducing Cell Count................................................................................................................................................... 6
Table 4-1. BQ77207 Circuit Module Bill of Materials................................................................................................................. 10
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SLUUCI0 – OCTOBER 2021
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