Texas Instruments BQ77207 User Manual

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User's Guide
BQ77207 Evaluation Module
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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1 Features...................................................................................................................................................................................3
1.1 Kit Contents........................................................................................................................................................................3
1.2 Ordering Information..........................................................................................................................................................
1.3 BQ77207 Circuit Module Performance Specification
1.4 Required Equipment..........................................................................................................................................................
2 BQ77207 EVM Getting Started
2.1 Before You Begin...............................................................................................................................................................
2.2 Warnings and Cautions......................................................................................................................................................
2.3 Quick Start..........................................................................................................................................................................4
3 BQ77207 Circuit Module
3.1 Cell Simulator.....................................................................................................................................................................6
3.2 Reducing the Cell Count....................................................................................................................................................
3.3 Connecting Cells................................................................................................................................................................
3.4 Hardware Configuration.....................................................................................................................................................
4 BQ77207EVM Circuit Module Physical
4.1 Board Layout......................................................................................................................................................................8
4.2 Bill of Materials.................................................................................................................................................................10
4.3 Schematics.......................................................................................................................................................................
5 Related Documents from Texas
6 Revision History...................................................................................................................................................................
Figure 2-1. EVM Connection for Basic
Figure 4-1. Top Silk Screen.........................................................................................................................................................
Figure 4-2. Top Assembly............................................................................................................................................................
Figure 4-3. Top Layer...................................................................................................................................................................8
Figure 4-4. Bottom Layer.............................................................................................................................................................
Figure 4-5. Bottom Silk Screen....................................................................................................................................................9
Figure 4-6. Bottom Assembly......................................................................................................................................................
Figure 4-7. Schematic Diagram.................................................................................................................................................
Figure 4-8. Cell Simulator..........................................................................................................................................................
Table 1-1. Ordering Information...................................................................................................................................................
Table 1-2. Performance Specification
Table 3-1. Reducing Cell Count...................................................................................................................................................
Table 4-1. BQ77207 Circuit Module Bill of Materials.................................................................................................................
SLUUCI0 - OCTOBER 2021
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ABSTRACT

Table of Contents

Guide....................................................................................................................................4
Use.................................................................................................................................................6
Construction..........................................................................................................8
Instruments.....................................................................................................................13
List of Figures
Operation........................................................................................................................5
List of Tables
Summary..........................................................................................................................3
Copyright © 2021 Texas Instruments Incorporated
Summary.........................................................................................3
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BQ77207 Evaluation Module 1