Texas Instruments TPS61050-269 Evaluation Board TPS61050EVM-269 TPS61050EVM-269 TPS61050EVM-269 사용자 설명서
제품 코드
TPS61050EVM-269
www.ti.com
1
Introduction
1.1
Requirements
2
Setup
2.1
Board Input/Output Connector Descriptions
2.1.1
J1 – FLASH / GND
2.1.2
J2 – VIN
2.1.3
J3 – GND
2.1.4
J4 –SCL/SDA
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.
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.
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 end 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
the USB interface adapter connects to the PC with the supplied USB cable; the other end 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
from the supplied CD or downloaded from the Texas Instruments Web site at
.
This section describes the jumpers and connectors on the EVM as well as how to properly connect, set
up, and use the TPS61050EVM-269 and TPS61052EVM-269.
up, and use the TPS61050EVM-269 and TPS61052EVM-269.
This header connects to the IC's FLASH pin and GND. It can be used to measure the voltage on the
FLASH pin and/or apply an external signal to the FLASH pin.
FLASH pin and/or apply an external signal to the FLASH pin.
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.
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.
This header connects to the IC I
2
C SCL and SDA control and data lines. It can be used to monitor the
data traffic between the USB-TO-GPIO and EVM.
TPS61050EVM-269 and TPS61052EVM-269
2
SLVU215B – August 2007 – Revised November 2007