Host (PC )
USB-to-I C
2
Adapter
TPS68401
EVM
SYSTEM OVERVIEW
www.ti.com
2
SYSTEM OVERVIEW
The system block diagram is shown below.
Figure 2. System Block Diagram
The system consists of the following components:
Host (PC)— A Windows
®
personal computer (PC) – used to configure and monitor the TPS68401EVM.
The GUI operates on the host. For the GUI to execute properly, the host needs to have the correct
LabViewTM RunTimeTM version. If the host doesn’t have the correct RunTimeTM version it will be
prompted during GUI installation. More information in GUI installation section.
USB-to-I
2
C Adapter— TPS68401EVM uses the I
2
C interface for communication with the host. The TI-
supplied USB-to-I
2
C adapter does the appropriate conversion so the host can use the USB
interface for communication. USB-to-I
2
C adapter has a 3.3-V supply rail which is used to supply the
EVM so no external power supply is needed.
TPS68401EVM— EVM board that houses the TPS68401 and peripheral components.
The evaluation module is designed to provide access to the features of the TPS65281. Some
modifications can be made to this module to test performance at different input and output voltages,
current and switching frequency. Please contact TI Field Applications Group for advice on these matters.
Figure 3. USB-to-GPIO Adapter
4
TPS68401EVM User’s Guide
SLVU812 – November 2012
Submit Documentation Feedback
Copyright © 2012, Texas Instruments Incorporated