TPS84259: TPS84259

Bhargav jani

Part Number: TPS84259
Other Parts Discussed in Thread: LM25117-Q1

Hello All ,

My question is regarding use of TPS84259 , using negative output integrated solution along with LM25117-Q1 as first smps IC.

Power supply input from the main power supply will be from 12V to 48V Vbatt.for both IC's adjusable.

Can TPS84259 ouput voltage be adjusted by a MC, as TPS84259 does not have FB pin. I wish to adjust the voltage from the range from -1V to pos (0.8V - 5V )......Is it possible to come from -1V to positive or 0V in this IC . ??

My first IC provides Vout from 0.8V to 40V , with Iout upto 20A,

over 6 years ago

0 J Arrigo over 6 years ago

TI__Mastermind 28020 points

The TPS84259 may be able to be adjusted digitally using a digital controller and the Vadj pin.

I'm confused by your output voltage range. The TPS84259 voltage adjust range is -3 to -17V.

Please contact me directly at jarrigo@ti.com for more detailed discussion.

0 Bhargav jani over 6 years ago in reply to J Arrigo

Intellectual 340 points

Thank you, for the response.

I wish to got ahead with using this IC in my application. The question, is it possible to adjust the output voltage with the help of a micro-controller (digital) ? for TPS84259.

As the other IC in my application has a FB pin LM25117-Q1, with which I can change the output voltage.

The pin Vadj with help of resistor can help change the output voltage.

Regards

Bhargav

0 J Arrigo over 6 years ago in reply to Bhargav jani

TI__Mastermind 28020 points

Answered offline

Power management

Power management forum

TPS84259: TPS84259