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5

EVM Hardware and Software Setup

5.1

System Requirements

5.2

Software Installation

6

Troubleshooting Unexpected Dialog Boxes

7

Hardware Connection

7.1

Connecting bq20z65/bq29412 Circuit Module to Battery Pack

EVM Hardware and Software Setup

www.ti.com

Table 4. Performance Specification Summary

Specification

Minimum

Typical

Maximum

Units

Input voltage Pack+ to Pack–

6

15

25

V

Charge and discharge current

0

2

7

A

This section describes how to install the bq20z65 PC software and how to connect the different
components of the EVM.

The bq20z65EVSW software requires Windows™ 2000 or Windows XP.

Find the latest software version in the bq20z65 tool folder on

power.ti.com

Use the following steps to

install the bq20z65EVSW software:

1. Copy the files from the Ti Web site into a temporary directory you select, double-click on

bqEV-EASYSetup00.09.xx.exe

, where xx indicates the version, and follow the installer instructions to

complete the bq20z60 EVSW installation.

2. If the EV2300 was not previously installed, after bq20z60 EVSW installation, a TI USB DRIVER

INSTALLER pops up. Click Yes for the agreement message and follow its instructions. Two drivers are
associated with the EV2300. Follow the instructions to install both. Do not reboot the computer, even if
asked to do so.

3. Plug the EV2300 into a USB port. The Windows system may show a prompt that new hardware has

been found. When asked, "Can Windows connect to Windows Update to search for software?", select
"No, not this time" and click on NEXT. In the next dialog window, it indicates "This wizard helps you
install software for: TI USB Firmware Updater", select "Install the software automatically
(Recommended)" and click NEXT. It is common for the next screen to be the Confirm File Replace
screen. Click No to continue. If this screen does not appear, then go to the next step. After Windows
indicates that the installation was finished, a similar dialog window pops up to install the second driver;
proceed with the same installation preference as the first one. The second driver is TI USB bq80xx
Driver.

The following actions can help the user to avoid unexpected dialog boxes.

Ensure that the files were extracted from the zip file using the

Preserve Folder names

option.

Ensure that all the files were extracted from the zip file.

The user that is downloading the files must be logged in as the administrator.

The driver is not signed, so the administrator must allow installation of unsigned drivers in the
operating system policy.

The bq20z65EVM-001 comprises three hardware components: the bq20z65/bq29412 circuit module, the
EV2300 PC interface board, and the PC.

Figure 7

shows how to connect the bq20z65/bq29412 circuit module to the cells and system load/charger.

The cells must be connected in the following order:

8

bq20z65EVM-001 SBS 1.1 Impedance Track™ Technology

SLUU353 – June 2009

Enabled Battery Management Solution Evaluation Module

Submit Documentation Feedback

Summary of Contents for bq20z65EVM-001

Page 1: ... functionality of the bq20z65 bq29412 solution under different charge and discharge conditions Contents 1 Features 2 2 bq20z65 Based Circuit Module 2 3 bq20z65 Circuit Module Schematic 3 4 Circuit Module Physical Layouts and Bill of Materials 3 5 EVM Hardware and Software Setup 8 6 Troubleshooting Unexpected Dialog Boxes 8 7 Hardware Connection 8 8 Operation 9 9 Calibration Screen 12 10 Pro Advanc...

Page 2: ...nt overvoltage protection IC and all other components necessary to accurately predict the capacity of 2 3 or 4 series cells Contacts on the circuit module provide the following connections Direct connection to the cells 1N BAT 1P 2P 3P 4P BAT To the serial communications port SMBC SMBD The system load and charger connect across PACK and PACK To the system present pin SYS PRES PIN NAME DESCRIPTION ...

Page 3: ...FET is set to ON state as default 3 Precharge FET mode Dedicates a precharge current path using an additional open drain OD pin drive FET PCHG FET to sustain the PACK voltage level To use a particular mode of charging with the EVM add or remove some elements shown in Table 2 and use the given settings of DF Configuration ZVCHG1 0 Table 2 Components and Flash Memory Settings for Different Precharge...

Page 4: ...PCB layers Figure 1 through Figure 5 and assembly drawing for the bq20z65 module Figure 1 bq20z65EVM 001 Layout Silk Screen Figure 2 Top Assembly Figure 3 Top Layer 4 bq20z65EVM 001 SBS 1 1 Impedance Track Technology SLUU353 June 2009 Enabled Battery Management Solution Evaluation Module Submit Documentation Feedback ...

Page 5: ... 47µF 16 V X7R 20 0603 Any STD 3 C10 C14 C21 Capacitor Ceramic 1 0µF 25 V X7R 20 0805 Any STD 4 D1 D3 D11 Diode Switching 150 mA 75 V 350mW SOT23 Vishay Liteon BAS16 2 D4 D5 Diode Dual Zener 5 6V 300mW SOT23 Vishay AZ23C5V6 Telefunken 5 D6 D10 Diode LED Green Gullwing GW Type 20ma 7 5 0 120 0 087 Panasonic LN1361C mcd typ inches 1 J1 Header Friction Lock Ass y 4 pin Right Angle 0 400 0 500 Molex 2...

Page 6: ... 16 W 5 0603 Std Std 2 R25 R29 Resistor Chip 8 45kΩ 1 16 W 1 0603 Std Std 2 R26 R30 Resistor Chip 61 9kΩ 1 16 W 1 0603 Std Std 7 R6 R10 R31 Resistor Chip 1kΩ 1 16 W 5 0603 Std Std R35 2 RT1 RT2 Thermistor 10kΩ 0 095 0 150 Semitec NTC103AT 1 SW1 Switch Push button Momentary N O Low Profile 5 mm 5 mm Panasonic EVQPLCxxxx 2 TB1 TB4 Terminal Block 2 pin 6 A 3 5mm 0 27 0 25 OST ED1514 2 TB2 TB3 Termina...

Page 7: ...ical Layouts and Bill of Materials Figure 6 Schematic This section summarizes the performance specifications of the bq20z65 bq29412 circuit module SLUU353 June 2009 bq20z65EVM 001 SBS 1 1 Impedance Track Technology 7 Enabled Battery Management Solution Evaluation Module Submit Documentation Feedback ...

Page 8: ...ardware has been found When asked Can Windows connect to Windows Update to search for software select No not this time and click on NEXT In the next dialog window it indicates This wizard helps you install software for TI USB Firmware Updater select Install the software automatically Recommended and click NEXT It is common for the next screen to be the Confirm File Replace screen Click No to conti...

Page 9: ...z65 Based Battery EV2300 SMBD SMBD SMBC SMBC VSS GND 2 Connect the PC USB cable to the EV2300 and the PC USB port The bq20z65EVM 001 is now set up for operation This section details the operation of the bq20z65 EVSW software Run bq Evaluation Software from the Start Programs Texas Instruments bq20z65 EVSW menu sequence The SBS Data screen Figure 8 appears Data begins to appear once the Refresh sin...

Page 10: ...is screen Figure 8 shows the SBS data set along with additional ManufacturersAccess command information such as individual cell measurements Additional Flag and Static data can be viewed by selecting the appropriate tab at the bottom of the SBS screen Data such as SBS ManufacturerName is static and does not change This data is viewed separately using the Static Data tab available at the bottom of ...

Page 11: ...d press Enter which writes the entire tab of flash data or select menu option Data Flash Write All The data flash must be read before any writes are performed to avoid any incorrect data being written to the device The File Special Export menu option allows the data flash to be exported but it configures the exported data flash to a learned state ready for mass production use The data flash config...

Page 12: ...FETs Calibration using the FETs is not recommended Measure the pack voltage from Batt to Batt total of cell voltages Measure the temperature of the pack These steps may not be required depending on the type of calibration being performed Perform the following steps 1 Select the types of calibration to be performed see Figure 10 2 Enter the measured values for the types selected except for CC Offse...

Page 13: ...ecimal and decimal as soon as values are typed into the boxes Invalid values may cause erroneous results When scaling converted hexadecimal values to a higher number of bytes follow these rules When unsigned is selected the left pad contains zeroes When signed is selected the left pad contains zeroes for a positive number or the left pad contains F for negative numbers SLUU353 June 2009 bq20z65EVM...

Page 14: ... Gas Gauge Enabled and Protection Enabled With Impedance Track data sheet SLUS757 2 bq20z90 V1 50 bq29330 bq20z95 Technical Reference manual SLUU264 3 bq20z70 and bq20z90 Application Book SLUA404 4 Quick Start Guide for bq20zxx Family Gas Gauge application report SLUA421 5 bqEasy User s Guide SLUU278 14 bq20z65EVM 001 SBS 1 1 Impedance Track Technology SLUU353 June 2009 Enabled Battery Management ...

Page 15: ...oduct This notice contains important safety information about temperatures and voltages For additional information on TI s environmental and or safety programs please contact the TI application engineer or visit www ti com esh No license is granted under any patent right or other intellectual property right of TI covering or relating to any machine process or combination in which such TI products ...

Page 16: ...o change without notice TI grants you permission to use these resources only for development of an application that uses the TI products described in the resource Other reproduction and display of these resources is prohibited No license is granted to any other TI intellectual property right or to any third party intellectual property right TI disclaims responsibility for and you will fully indemn...

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