TPS630241: Feedback Network Resistance

David Lundquist

Part Number: TPS630241

Looking to modify the output of a configuration of the feedback so I can adjust the output voltage. There is no discussion at all in the data sheet of the expected internal divider resistor values. Can TI provide any guidance on the range of values or the expected FB pin leakage at 2.9V?

Thanks, Dave

over 3 years ago

0 Tao Zhang over 3 years ago

TI__Mastermind 30780 points

Hi Dave,

i am sorry i can not find any date your needed in our system. my apologize.

Regards

Tao

0 David Lundquist over 3 years ago in reply to Tao Zhang

Prodigy 70 points

OK, any chance the PSpice model would show typical behavior?

Thanks

0 Tao Zhang over 3 years ago in reply to David Lundquist

TI__Mastermind 30780 points

Hi David,

that's a good idea, i think it will. if you have any question after you try with PSpice, please let me know.

Regards

Tao

0 David Lundquist over 3 years ago in reply to Tao Zhang

Prodigy 70 points

I did run the test and see about 4.5uA into the FB pin at 2.9V. That is very close to what I expected. I think I can take it from here. No further questions.

0 Tao Zhang over 3 years ago in reply to David Lundquist

TI__Mastermind 30780 points

Hi David,

you did a great jod. thanks.

Regards

Tao

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TPS630241: Feedback Network Resistance