Texas Instruments TPS60255EVM-262 Evaluation Module TPS60255EVM-262 TPS60255EVM-262 데이터 시트
제품 코드
TPS60255EVM-262
2.2
Equipment Requirements
2.2.1
Personal Computer
2.2.2
USB-TO-GPIO Adapter
2.2.3
Software
2.2.4
Power Supplies
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JP7 – DB2
JP7 – DB2
JP7 is used to connect the cathode of the DB2 LED to the GB2 pin on the TPS60255. Place a shunt on
JP7 to connect the WLED to the DB2 input pin. Remove the shunt and place an ammeter in series to
measure the DB2 current or attach an external WLED using this jumper.
JP7 to connect the WLED to the DB2 input pin. Remove the shunt and place an ammeter in series to
measure the DB2 current or attach an external WLED using this jumper.
JP8 – EN
This jumper enables the device by tying the ENA pin to VIN, if set to ON or disables the device by tying
the ENA pin to GND, if set to OFF.
the ENA pin to GND, if set to OFF.
In order for this EVM to operate properly, the following components must be connected and properly
configured.
configured.
A Windows based computer with a USB port is required to operate this EVM. The TPS60255 interface
software, which is run on the personal computer (PC), communicates with the EVM via the PC USB port.
The user sends commands to the EVM and reads the contents of the TPS60255 internal registers through
the USB port.
software, which is run on the personal computer (PC), communicates with the EVM via the PC USB port.
The user sends commands to the EVM and reads the contents of the TPS60255 internal registers through
the USB port.
The HPA172 USB-TO-GPIO Adapter is the communications link between the PC and the EVM. The
adapter connects to the PC with the supplied USB cable on one side and to the EVM though the supplied
ribbon cable on the other. When the user writes a command to the EVM, the interface program, which is
run from the PC, sends the command to the PC USB port. The adapter receives the USB command and
converts the signal to the one-wire EasyScale
adapter connects to the PC with the supplied USB cable on one side and to the EVM though the supplied
ribbon cable on the other. When the user writes a command to the EVM, the interface program, which is
run from the PC, sends the command to the PC USB port. The adapter receives the USB command and
converts the signal to the one-wire EasyScale
TM
protocol and sends it to the TPS60255 IC via the IF pin.
The EasyScale protocol is a write only protocol, with the IC only being able to respond to the software by
pulling the IF pin low to indicate it has received the signal. If the software's ACK box is checked, the
software will mointor for this low signal and give an error message if it is not received.
pulling the IF pin low to indicate it has received the signal. If the software's ACK box is checked, the
software will mointor for this low signal and give an error message if it is not received.
Texas Instruments provides software to assist the user in evaluating this EVM. To install the software,
insert the enclosed CD into your computer. The software should start automatically. If it does not, go to
<Start>, <Run>, and type D:\setup.exe, and click <OK> (assuming that D: is your CD drive). If the PC is
connected to the internet, the software will automatically search for updates. Alternatively, the user can
manually check the TPS60255 product folder on the TI Web site for the latest version of the software.
insert the enclosed CD into your computer. The software should start automatically. If it does not, go to
<Start>, <Run>, and type D:\setup.exe, and click <OK> (assuming that D: is your CD drive). If the PC is
connected to the internet, the software will automatically search for updates. Alternatively, the user can
manually check the TPS60255 product folder on the TI Web site for the latest version of the software.
The TPS60255 EVM requires one power supply set not larger than 6 V and capable of providing at least
1A for operation.
1A for operation.
SLVU241 – April 2008
TPS60255EVM-262
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