TPS23754EVM-383: adjusting output voltage

Brian Antheunisse

Part Number: TPS23754EVM-383

Hey guys,

Customer wants to increase Vout of this board to 15V. Can you do that with just the Rfb? or will the transformer need to change entirely?

Thanks,

Brian

over 5 years ago

0 Thomas Amlee over 5 years ago

TI__Genius 9230 points

Hi Brian,

Let me get back to you on Monday.

Thanks,
Tom Amlee
PoE PD Apps Engineer

0 Thomas Amlee over 5 years ago in reply to Thomas Amlee

TI__Genius 9230 points

Hi Brian,

Initially, you can adjust the FB resistor divider for the new output voltage, check for stability & compensate the feedback circuit if necessary.

Your transformer is probably fine.

Finally, since you are dealing with a higher output voltage, make sure your secondary FETs have a high enough voltage rating.

Thanks,
Tom Amlee
PoE PD Apps Engineer

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TPS23754EVM-383: adjusting output voltage