Datasheet

www.ti.com

2.3 Hardware Setup Converter 1 (upper board)

2.4 Hardware Setup Converter 2 (lower board)

2.5 Hardware Setup Connection to Host Computer (upper or lower board)

Setup

Note: Verisign code signing is used to prevent any malicious code from changing this application. If at any

time in the future the binaries are modified the code will no longer attempt to run.

Configure JP1, JP3, JP5 and JP7 using a shorting block. Jumpers JP1 and JP3 are used to connect the

SDA and SCL lines of the I

C™ interface to a pull-up resistor to the input voltage. The USB Interface

Adapter supplied with the EVM has its own internal pull-up resistors. Jumpers JP1 and JP3 should be left

open with no jumper installed when using the USB Interface Adapter supplied with the EVM.

Configure the jumper on JP7 to the desired setting. Shorting between VSEL and HIGH (pin 1 and 2)

makes the TPS62351 power up with the output voltage set by the VSEL1 register. Shorting between

VSEL and LOW (pin 2 and 3) makes the TPS62351 power up with the output voltage set by the VSEL0

Configure JP5 as desired. Shorting between EN and ON (pin 1 and 2) enables the TPS62351. Shorting

between EN and OFF (pin 2 and 3) disables the TPS62351. The EN pin must be tied high (enabled) in

order to establish communications with the IC via the I

C™ interface. The TPS62351 powers up with the

device disabled no matter how JP5 is set. The software must enable the TPS62350 in order to produce a

voltage at the output.

Configure JP2, JP4, JP6 and JP8 using a shorting block. These jumpers are used to connect the SDA and

SCL lines of the I

C™ interface to a pull-up resistor to the input voltage. The USB Interface Adapter

supplied with the EVM has its own internal pull-up resistors so no additional pull-up is required. No jumper

is necessary if the Texas Instruments USB Interface Adapter is used to communicate with the

TPS62351EVM board and JP2 and JP4 should be left open.

Configure the jumper on JP6 to the desired setting. Shorting between VSEL and HIGH (pin 1 and 2)

makes the TPS62351 power up with the output voltage set by the VSEL1 register. Shorting between

VSEL and LOW (pin 2 and 3) makes the TPS62351 power up with the output voltage set by the VSEL0

Configure JP8 as desired. Shorting between EN and ON (pin 1 and 2) enables the TPS62351. Shorting

between EN and OFF (pin 2 and 3) disables the TPS62351. The EN pin must be tied high (enabled) in

order to establish communications with the IC via the I

C™ interface. The TPS62351 powers up with the

device disabled no matter how JP8 is set. The software must enable the TPS62350 in order to produce a

voltage at the output.

Connect the USB Interface Adapter to the host computer using the supplied USB cable. Connect the

desired converter on the TPS62351EVM board to the USB Interface Adapter using the supplied 10 pin

ribbon cable. The connectors on the ribbon cable are keyed to prevent incorrect installation.

SLVU186 – October 2006 TPS62351EVM 5

Submit Documentation Feedback