We are looking to use the TPS23753A for a new PoE design. We would like to use the demo board TPS23753AEVM as a baseline and increase delivered power to 13 W. Do you have experience on how much difference the following transformer will make regarding loop compensation.
XFMR Coilcraft POE13P-50L (127uH)
Also, is there an Orcad copy of the EVM board schematic?
POE13P-50L would have negligable effect on the loop. Generally, the transformer rating is designed to match the POE standard/type maximum power consumption at the ethernet connector (13W maximum for type 1 can be ~ 11W at the dc/dc converter output including losses). So if you want more power output (13W at the output of the converter), then you will exceed the standard maximum at the ethernet connector. 13W out of the converter is OK when operating from an AC adapter as a power source or if your design steps up to type 2 power levels.
Which EVM do you need the ORCAD schematic for? TPS23753AEVM-001 or -003/4/5?
Thank you. The customer is looking for Orcad schematic for TPS23753AEVM-003. This is a +5V design.
PCAD -> ORCAD PDIF is attached.
Eric - Thank you.
The customer is looking for an OrCad DSN file for the TPS23753-004 demo board.
The only tool I have at my disposal is the "Export to PDIF" from PCAD 2004. The output is 2x log files and a .PDF file which is supposed to be the .DSN file. Can you change the suffix and re-try? I've attached the native PCAD 2004 design file if you have other conversion tools to attempt the export with..
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