AMC7891: AMC7891

vara lakshmi

Part Number: AMC7891
Other Parts Discussed in Thread: TPS7A91, DAC6311, DAC7311, TINA-TI, DAC5311

https://e2e.ti.com/blogs_/archives/b/precisionhub/archive/2016/10/28/how-to-build-a-monitor-and-control-solution-for-voltage-regulators

over 7 years ago

0 Paul_Frost over 7 years ago

TI__Guru 53983 points

Hi Vara,

Do you have question?

Thanks!
Paul

0 vara lakshmi over 7 years ago in reply to Paul_Frost

Prodigy 100 points

Hi,

TI have any Evaluation board with voltage regulators .Feedback controlled by DAC. Like below link

e2e.ti.com/.../how-to-build-a-monitor-and-control-solution-for-voltage-regulators

0 Paul_Frost over 7 years ago in reply to vara lakshmi

TI__Guru 53983 points

Hi Vara,

We currently do not offer the complete application with the regulator on the board with the AMC, but we do have the LMP92018EVM if you would like to assemble the circuit.
www.ti.com/.../lmp92018sqeval

Thanks!
Paul

0 vara lakshmi over 7 years ago in reply to Paul_Frost

Prodigy 100 points

Hi.
I need any Evaluation board should contain on board regulators with DAC for Feed Back controlling and ADC for measure for VOUT.Two combine boards also ok.

0 Paul_Frost over 7 years ago in reply to vara lakshmi

TI__Guru 53983 points

Hi Vara,

You can use the LMP92018EVM with another LDO EVM board, just as the TPS7A91EVM to build a prototype of this application. The TPS7A91 features a feedback pin.

www.ti.com/.../tps7a91evm-831

Thanks!
Paul

0 vara lakshmi over 7 years ago in reply to Paul_Frost

Prodigy 100 points

Hi,

TPS7A91 EVM used resistors for changing output.But how to proceed with DAC .and ADC to connect at output of LDO? kindly clarify.

Regards

var

0 Paul_Frost over 7 years ago in reply to vara lakshmi

TI__Guru 53983 points

Hi Vara,

This article explains the calculations to determine the three resistor values for the circuit.

Give your voltage regulator the margin it deserves

Other Parts Discussed in Post: TINA-TI , DAC5311 , DAC7311 , DAC6311 Do you feel like your adjustable voltage regulator deserves some margin? I do, and I have some good news: all it takes is one DAC and…

By Matthew Poole over 9 years ago in Archives > Precision Hub

The LMP would be connected in a similar fashion as below. If the VOUT range you desire is greater than the ADC input range of the LMP, then you should use two resistor resistors to create a divider to scale the VOUT to a lower value. I is also recommended that you have a 10nF capacitor on the input of the ADC if you are using the resistors to scale the input.

Thanks!

Paul

0 Paul_Frost over 7 years ago in reply to Paul_Frost

TI__Guru 53983 points

Regulator margining.TSCYou can also take a look at this TINA-TI simulation if you would like.

Thanks!

0 vara lakshmi over 7 years ago in reply to Paul_Frost

Prodigy 100 points

hi paul,

Thank you very much.Shall we get for for ADC also like these type of article with DC-DC converter.

Regards

Var

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AMC7891: AMC7891