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1
Introduction
1.1
Requirements
2
Setup
2.1
Input/Output Connector Descriptions
2.1.1
J1 – VIN
2.1.2
J2 – GND
Introduction
To operate this EVM, connect and properly configure the following components:
A personal computer (PC) with a USB port is required to operate this EVM. The TPS61050/2 interface
software runs on the PC and communicates with the EVM via the PC’s USB port. Commands can be
sent to the internal registers of the TPS61050/2 through the USB port.
Personal Computer Requirements
•
Windows™ 2000 or Windows™ XP operating system
•
USB port
•
Minimum of 30 MB of free hard disk space (100 MB recommended)
•
Minimum of 256 MB of RAM
Printed-Circuit Board Assembly
The board contains the either the TPS61050 or TPS61052 IC in QFN package, its required external
components and a high power WLED.
USB-TO-GPIO Adapter
The USB-TO-GPIO adapter is the link that allows the PC and the EVM to communicate. One end of
the USB interface adapter connects to the PC with the supplied USB cable; the other side of the USB
interface adapter connects to the EVM with the supplied ribbon cable.
When a command is written to the EVM, the interface program running on the PC sends the
commands to the PC USB port. The USB interface adapter receives the USB command, converts the
signal to an I
2
C protocol, and sends the I
2
C signal to the TPS61050/2 EVM board
Software
Texas Instruments provides software to assist in evaluating this EVM. The software can be installed
from the supplied CD or downloaded from the Texas Instruments Web site at
WARNING
This EVM has a white LED that flashes very bright. Protective eye
wear and/or a diffuser to cover the white LED is recommended.
This section describes the jumpers and connectors on the EVM as well as how to properly connect, set
up, and use the TPS61050EVM-215 and TPS61052EVM-215.
This header is for the positive input supply voltage to the converter. The leads to the input supply should
be twisted and kept as short as possible to minimize EMI transmission and reduce inductive voltage droop
at a load transient event.
This is the return connection for the input power supply of the converter.
TPS61050EVM-215 and TPS61052EVM-215
2
SLVU202B – May 2007 – Revised November 2007