TPS65400 webench

domenyko

Other Parts Discussed in Thread: TPS65400, TPS652510, TPS65261-1, TPS65261

Hi All,

since the TPS65400 is not present in webench, is there any other buck in webench which has similar performances to the buck present in the TPS65400 ?

thanks,

Domenico

over 10 years ago

0 Nikhil Gupta (Product Folder Models) over 10 years ago

TI__Mastermind 39210 points

Domenico,

We do plan to add this into WEBENCH shortly. In the mean time, we do have spice models available for this device which you can use to analyze your circuit.

Thanks,

0 Surinder Singh over 10 years ago

TI__Expert 3085 points

TPS65400 is in work for WEBENCH release. There are other PMU's in WEBENCH you can try, for example: TPS652510, TPS65261, and TPS65261-1.

You can also put in your Vin, Vout, Iout requirements in WEBENCH and find out about other parts. For multi-output problems, use WEBENCH Power Architect and select the option to include PMU's and you may more possibilities.

0 domenyko over 10 years ago in reply to Surinder Singh

TI__Genius 9655 points

Hi Surinder,
thanks for the hint.
regards,

Domenico

0 domenyko over 10 years ago in reply to Nikhil Gupta (Product Folder Models)

TI__Genius 9655 points

Hi Nikhil,
thanks.
Domenico

0 domenyko over 10 years ago in reply to Surinder Singh

TI__Genius 9655 points

Hi Surinder,
any news about the release of the TPS65400 in webench ?
thanks,
Domenico

0 Mark Nohr over 10 years ago

Intellectual 570 points

I'm also interested in the webench model. Any idea when it will be available?

0 Nikhil Gupta (Product Folder Models) over 10 years ago in reply to Mark Nohr

TI__Mastermind 39210 points

Domenico and Marc,

This is actively in work and should be out shortly. If you can provide your specifications (Vin range, Vout values and the corresponding Iout values), I can create a design report for you as a stop gap measure.

Thanks,

0 domenyko over 10 years ago in reply to Nikhil Gupta (Product Folder Models)

TI__Genius 9655 points

Hi Nikhil,
this is really a good idea.
I'll come back to you with the IN/OUT ranges.
regards,
Domenico

0 Mark Nohr over 10 years ago in reply to Nikhil Gupta (Product Folder Models)

Intellectual 570 points

If you send me your email address I you the altium schematic I have. Here is the design calcs I did based on the data sheet.

I have another question posted about calculating the filter values for each feedback network. If you have the formula to derive those values it would be very helpful.

Supply Design Calcs.pdf

0 domenyko over 10 years ago in reply to domenyko

TI__Genius 9655 points

Hi Nikhil,

below the conditions od the 2 configurations:

• Vin: 6 -15 V

Conf_1 Conf_2
Vout [V] Iout [A] iOUT [A]
1.2 0.50 1.00
1.8 0.50 1.00
3.3 0.75 1.00
5.0 0.75 1.00

• Switching clock: 1.21 or 2.1 MHz
• Max components height: 2 mm
• Operating temp range: [-30, +55] °C
• Target efficiency: >90 % @ Iout > 0.1 A

thanks a lot,
Domenico

0 Nikhil Gupta (Product Folder Models) over 10 years ago in reply to Mark Nohr

TI__Mastermind 39210 points

Mark,

Please find attached the report from WEBENCH for your specs.

TPS65400_Report.pdf

Thanks,

0 domenyko over 10 years ago in reply to domenyko

TI__Genius 9655 points

Hi Nikhil,
did you have any chance to run the simulations ?
regards,
Domenico

0 Nikhil Gupta (Product Folder Models) over 10 years ago in reply to domenyko

TI__Mastermind 39210 points

Domenico,

We are looking into your specs. The requirements are quite stringent. Please give us some more time. Are you OK with using any other part?

Thanks,

0 Nikhil Gupta (Product Folder Models) over 10 years ago in reply to Nikhil Gupta (Product Folder Models)

TI__Mastermind 39210 points

Domenico,

Unfortunately at this time, we are not able to specify inputs like Max Component height and Frequency of operation for this device (since it in integrated into our Power Architect tool). Also, meeting the efficiency requirement of > 90% at 0.1A is a little difficult with this device.

If you are ok with using other parts, I can show you how to do that in our Power Designer tool using "Advanced Inputs". Do let me know if you are open to this option.

Thanks,

0 domenyko over 10 years ago in reply to Nikhil Gupta (Product Folder Models)

TI__Genius 9655 points

Hi Nikhil,

the max height is a wish of the customer, so in case we cannot support it we can simulate with other parts. The frequency is more relevant because this is the power supply of a SDR so there is the needs to keep under control the frequency content of the signals.

I'm open to other solution too, but the customer prefers PMU/PMIC approach and not tree of discrete converters.

thanks for the support,

Domenico

0 Surinder Singh over 10 years ago in reply to domenyko

TI__Expert 3085 points

TPS65400 is released in WEBENCH now. Please try to run it from the Product Folder panel.

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TPS65400 webench