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EVM Hardware and Software Setup
4.3
bq28400/bq29200 Circuit Module Performance Specification Summary
summarizes the performance specifications of the bq28400/bq29200 circuit module.
Table 3. Performance Specification Summary
Specification
Minimum
Typical
Maximum
Units
Input voltage Pack+ to Pack–
—
8
—
V
Charge and discharge current
0
2
7
A
5
EVM Hardware and Software Setup
This section describes how to install the bq28400EVM-001 PC software, and how to connect the
components of the EVM.
5.1
System Requirements
The bq28400 EVSW software requires Windows™ 2000 or Windows XP. Drivers for Windows 98SE are
provided, but Microsoft™ no longer supports Windows 98; and there may be issues in Windows 98 with
USB driver support.
NOTE:
The EV2x00 USB drivers have been tested for Windows 98SE, but no assurance is made
for problem-free operation with specific system configurations.
5.2
Software Installation
Go to the bq28400 tool folder on
to find the latest bq28400 EVSW software version.
To install the bq28400 EVSW software, follow these steps:
1. Log in as the administrator.
2. Save the archive to a temporary directory. Open the archive with the installation package, and copy its
contents in a temporary directory. The executable filename can consist of several component names
and versions. Double-click on the executable filename, and follow the installer instructions to complete
the bq28400 EVM installation.
3. If the EV2x00 was not previously installed, after bq28400 EVM installation, a TI USB DRIVER
INSTALLER pops up. Click Yes for the agreement message and follow its instructions.
4. Plug the EV2x00 into a USB port.
6
Troubleshooting Unexpected Dialog Boxes
The user that is downloading the files must be logged in as the administrator.
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 driver is not signed, so the administrator must allow installation of unsigned drivers in the operating
system policy.
7
Hardware Connection
The bq28400 comprises three hardware components: the bq28400/bq29200 circuit module, the EV2x00
PC interface board, and the PC.
7.1
Connecting bq28400/bq29200 Circuit Module to Battery Pack
shows how to connect the bq28400/bq29200 circuit module to the cells and system load/charger.
The cells should be connected in the following order:
•
2-Cell Pack: 1N (BAT–), 1P, and then 2P
11
SLUU494 – February 2011
bq28400EVM-001 SBS 1.1 Compliant Tablet PC and Netbook 2-Series Cell
Li-Ion Battery Gas Gauge and Protection
© 2011, Texas Instruments Incorporated