TPS40210: Demoboard PMP7132

Hi Stefan,

Thanks for your answer.

1. I couldn't find this reference design (or similar) in the TI Reference Designs Library. Can you please point me to the specific reference design

2. Technical question - are there any changes to the schematics which should be applied to adjust to nominal input voltage?

3. Can you please share the BOM for the PMP7132 reference design?

4. Can you please explain the operation of the compensation circuit? I think I'm missing something here. If I understand correctly, this circuit actually controls the PWM, by altering the current via the photodiode. So when the voltage in "X" point is 48V 0 there will be no current. However, the absolute maximum rating of the cathode voltage is 36V. Can you please explain?

Thanks,

Matan

Hi Stefan,

Thanks for your feedback. 

I couldn't find any suitable reference design in the Reference Designs Library. In my experience, those designs are complex so I would prefer to stick to an existing reference design which answers my specific requirements. So after you confirmed the PMP7132 is a proven design, I think I will go with it.

Can you please share the BOM for the Demoboard PMP7132?

Thanks,

Matan

Hi Matan,

Thanks for the feedback.
I did not find additional BOM files for the PMP7132 design from my side.
There are some design which have schematics available, but never have been build or tested, so I am not sure if this is such a design.

For parts like FET and diodes, the part numbers are already given in the schematic.
The transformer specs are described in the top right corner of the file.
For the standard components, it is important to check that the voltage and power ratings are suitable for this design.

I am very sorry that there is so little documentation for this specific design.

Best regards,
Niklas

Hi Niklas,

Just to clarify - is it possible that this reference design of PMP7132 was never built and tested?

Can you support adjusting another existing reference design according to the same input/output voltage values?

Thanks,

Matan

Hi Matan,

I checked once more with the designer of this PMP design.
My information from the last response was wrong.

The PMP7132 was built and tested.
The design therefore is verified and can be used for reference.
The BOM can be found here:
PMP7132RevA1 - BoM.xls

I am very sorry for the confusion.

Best regards,
Niklas

Hi Niklas,

Many thanks for this!

I noticed the BOM was created in 2020, while the schematics were created on 2011.

Can you please also share the latest confirmed schematics for the PMP7132 which matches the BOM?

Thanks,

Matan

Hi Matan,

There has not been any changes on the schematic. The version from 2011 is still valid and should match with the BOM file.

Best regards,
Niklas