DM8148 PMIC

Kevin Shen

Hi,

I am working on DM8148 schematic. TPS659110 and TPS659113 can't be found on TI webiste. Could you suggest which PMIC is good for DM8148? My problem is how to work with "SmartReflex" with other PWM controller.

Kevin

over 14 years ago

0 Varada Bellary over 14 years ago

TI__Expert 5750 points

For the TPS659110 and TPS659113, contact your local FAE.

For the smart reflex question, I will try to get some expert to have a look.

0 patrick nefos over 14 years ago in reply to Varada Bellary

Expert 1850 points

Varada,

I have similar needs re: TPS659113 powering DM8147

Patrick

0 Steve Clynes over 14 years ago

TI__Mastermind 43875 points

Kevin,

Have a look through this document. It might shed some light on SR for you. Most of the architecture and software are the same.

http://omapsupport.itg.ti.com/Docs/AppNotes/swpa117.pdf

BR,

Steve

0 Kevin Shen over 14 years ago in reply to Steve Clynes

Prodigy 100 points

Steve,

The page can't be opened. Could you email to me at kshen@xvdth.com?

Thanks.

Kevin

0 patrick nefos over 14 years ago in reply to Kevin Shen

Expert 1850 points

Me too and thanks! patrick@eimedical.com

0 Steve Clynes over 14 years ago in reply to patrick nefos

TI__Mastermind 43875 points

I am currently checking into this since I have just noticed that it is labeled NDA only, which is why the link does not work for you.

Sorry for the confusion.

I will try to get a non-NDA version for you.

BR,

Steve

0 patrick nefos over 14 years ago in reply to Steve Clynes

Expert 1850 points

Steve,

Is there a document that discussed Smart Reflex 2B as used on the DM814x?

Patrick

0 Steve Clynes over 14 years ago in reply to patrick nefos

TI__Mastermind 43875 points

OK, on further investigation it looks like the only documentation we have immediately available is under NDA requirements, so I am not able to distribute it openly.

If you have specific questions though I may be able to answer them.

BR,

Steve

0 patrick nefos over 14 years ago in reply to Steve Clynes

Expert 1850 points

Steve Clynes said:

If you have specific questions though I may be able to answer them.

BR,

Steve

Steve,

NDA understood. One specific question:

Is there a PMC for DM814x that accepts higher VIN of 15V? Planned?

OK if only for the VDD1, VDD2 cores.

Patrick

0 Kevin Shen over 14 years ago in reply to Steve Clynes

Prodigy 100 points

Steve,

We have NDA with TI. How can I get this document. Please let us know. email: kshen@xvdth.com

0 Steve Clynes over 14 years ago

TI__Mastermind 43875 points

Kevin,

OK, starting back at your original question...

What are you actually trying to do? If you are wanting to investigate building a discrete SR compliant power supply, then basically you need a programmable supply which is able to vary its output from about 0.8V to 1.4V in 12.5mV or so steps. The control comes from I2C commands from the processor.

In order to get more detailed help in constructing such a supply your best bet is to start a thread on the power supply forums here...

http://e2e.ti.com/support/power_management/pmu/default.aspx

BR,

Steve

0 Steve Clynes over 14 years ago in reply to patrick nefos

TI__Mastermind 43875 points

Patrick,

We are working your question and will get back to you.

BR,

Steve

0 Steve Clynes over 14 years ago in reply to patrick nefos

TI__Mastermind 43875 points

Patrick,

The TPS requires a 5V input so currently it is necessary to drop from your 15V input down to 5V before passing to the TPS.

I don't believe that we currently have any plans to support higher input voltages, sorry.

BR,

Steve

0 pathfinder over 14 years ago in reply to Steve Clynes

TI__Genius 12790 points

All,

I found data sheet by 'google' search: http://www.google.com/search?q=tps659113&sourceid=ie7&rls=com.microsoft:en-us:IE-SearchBox&ie=&oe=

Still can't find 'ordering' or 'sample request' information?

Thanks.

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DM8148 PMIC