Texas Instruments bq76920EVM, User Manual

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1 SLVU924D – March 2014 – Revised November 2018
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Copyright © 2014–2018, Texas Instruments Incorporated
bq76920 Evaluation Module User's Guide
User's Guide
SLVU924D – March 2014 – Revised November 2018
bq76920 Evaluation Module User's Guide
The bq76920EVM evaluation module (EVM) is a complete evaluation system for the bq76920, a 3-cell to
5-cell Li-Ion battery analog front end (AFE) integrated circuit. The EVM consists of a bq76920 circuit
module which is used for simple evaluation of the bq76920 AFE and bq78350 gauge functions. The circuit
module includes one bq76920 integrated circuit (IC), sense resistor, power FETs, and all other onboard
components necessary to protect the cells from overcharge, over discharge, short circuit, and overcurrent
discharge in a 5-series cell Li-Ion or Li-Polymer battery pack. The circuit module connects directly across
the cells in a battery. With a compatible interface board and Microsoft
®
Windows
®
based PC graphical
user interface (GUI) software, the user can view the device registers, adjust protection limits and enable
FET control outputs.
Contents
1 Features
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1.1 Kit Contents
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3
1.2 Ordering Information
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1.3 bq76920 Circuit Module Performance Specification Summary
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1.4 Required Equipment
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3
2 bq76920 EVM Quick Start Guide
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2.1 Before You Begin
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2.2 Quick Start
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3 Interface Adapter
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4 bq76940/bq76930/bq76920 Software
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4.1 System Requirements
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4.2 Installing the bq76940/bq76930/bq76920 Software
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4.3 Interface Adapter
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8
4.4 Software Operation
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5 Battery Management Studio Software
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5.1 System Requirements
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5.2 Installing bqStudio
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5.3 Interface Adapter SMB
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5.4 bqStudio Operation
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5.5 Firmware Programming
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5.6 Data Memory Configuration
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5.7 Chemistry View
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5.8 Calibration
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5.9 Device Control
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6 bq76920 Circuit Module Use
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6.1 Cell Simulator
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6.2 Evaluating with Simulated Current
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6.3 Reducing the Cell Count
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6.4 Connecting Cells
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6.5 Connecting to a Host
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6.6 Gauge Circuits
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6.7 Unused Components
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7 bq76920EVM Circuit Module Physical Construction
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28
7.1 Board Layout
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28
7.2 Bill of Materials
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8 Related Documents From Texas Instruments
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