TPS62745: configuration

Rajani Peddineni

Part Number: TPS62745

Hi Team,

We have designed TPS62745 chip as per data sheet , all VSEL1 to 4 lines connected to VOUT Line. When I used TI ‘WEBENCH design tool‘ found all VSEL 1to 4 lines connected to VIN. PG is open in datasheet application ckt , WEBENCH tool it is connected to pullup resistor . Please confirm which configuration is correct?

As per Datasheet

WEBENCH ® Design Report

Regards,

Rajani

over 1 year ago

+1 Calan Elaya over 1 year ago

TI__Genius 9455 points

Hello Rajani,

Athos will answer this soon.

Best,

Calan

0 Yuchang Zhang over 1 year ago in reply to Calan Elaya

TI__Mastermind 18510 points

Rajani, Vsels are used for Vout set, you may refer to table 1 and 9.2.2 in datasheet for details. Pull to high or low to get different Vout and it can be dynamic scaling. The threshold of vsel is shown in table 7.5, if VIN is lower such as 3.3 or 5V, Vsel can be tied to VIN.

if use PG, need to pull up, if not use, let it floating is ok.

Yuchang

Power management

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TPS62745: configuration