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WEBENCH® Tools/WEBENCH-POWER-DESIGNER: TPS43060 webench simulation with custom component value

Don Foong
Expert 4100 points

Part Number: WEBENCH-POWER-DESIGNER
Other Parts Discussed in Thread: TPS43060

Tool/software: WEBENCH® Design Tools

Hi Webench Team,

 

Our customer is using the TPS43060 in one of their product design, the application is 10.5V~28Vin to 40Vout , load current 3.5A. Customer has done the webench simulation in 2018-Aug (attached is the design file), with the simulated power efficiency of ~95%. They measured the actual power efficiency is ~93%. Customer hope to have a more accurate power efficiency simulation using the actual mosfet and inductor value used in the design (attached datasheets for both components). Below is the link to the webench simulation file. Customer is not able to change the M1, M2 and L1 component value. Pls advice how can we change the component value to custom value ?

 

https://webench.ti.com/appinfo/webench/scripts/SD2.cgi?ID=210471::power::Su_Leh_Tung@tecsg.com.sg

 Advanced Power Electronics AP9974GH 60V 74A 10.5mOhm.pdfCoilcraft XAL1510-103MED Shielded Power Inductors.pdf

 

I am not able to open the webench design link due to I am not the recipient of the link. I have tried simulate with the same requirement of 10.5V-min, 28Vin-max, 40Vout , load current 3.5A, but not able to proceed until lowering the Iout to 2A. Webench show with message – M1 and M2 could not be found in current database and continue to use ideal parameters and not able to change both M1 and M2 to other value either. Pls advise is there any other way that I can change the value ?

 

Thanks for looking into this enquiry. Look forward to your feedback.

 

Note – I have checked with sk_loo who has shared the webench design with customer. He is unable to share the webench design file with me. He is too unable to change the M1 & M2 value either.

 

 

 

From: WEBENCH Team [mailto:webench@ti.com]
Sent: Friday, 27 July 2018 10:11 AM
To: leh tung su(TSE TSE) <Su_Leh_Tung@tecsg.com.sg>
Subject: Shared TPS43060 Design From sk_loo@ti.com

 

Texas Instruments WEBENCH® Designer



Hi LEH TUNG,

Sai Kee Loo from Texas Instruments has created an TPS43060 Design TPS43060RTER 10.5V-28.0V to 40.00V @ 3.5A for you using the Texas Instruments WEBENCH® Designer.

Notes for this design: Hi Leh TungI redo the simulation and teh phase margin is around 41 degreechanging the Rcomp from your original value of 5.49K to 7.5K increase teh phase margin to around 51 degree.so you can use any Rcomp value between 5.49K to 7.5K.

Click on the button below to access this design.



Or you can access the following link to access your design:
https://webench.ti.com/appinfo/webench/scripts/SD2.cgi?ID=210471::power::Su_Leh_Tung@tecsg.com.sg

Once you have accepted the design, you will be able to:
- access all of the design information including schematics, simulation graphs, and design BOMs
- make changes of your own
- share your designs with other people by using the "Share" design operation on the MyDesigns page in WEBENCH® Designer

You can use the Texas Instruments WEBENCH® Designer to:
- Create fully optimized circuits in minutes
- Print a detailed design report including your specifications, bill of materials, schematic, and simulations
- order parts and demo boards

We look forward to helping you with future designs.


Regards,
The WEBENCH Team at Texas Instruments

If you think that this email has been sent to you in error, please submit feedback at the WEBENCH E2E Forum