Hello Pablo,
Can you confirm by sending a schematic? Component size, type (electrolytic vs ceramic), and voltage/power rating are all important for part selection.
I would suggest ordering an EVM, potentially the TPS2378 EVM to compare waveforms…
Hi Caner,
TPS23753A is a .af PD controller so it should be compatible with .af PSE's if they are compliant to the standard. Can you describe what you mean by "doesn't work"? Is the PSE able to turn on but shuts down? Have you tested with the -004 EVM…
Other Parts Discussed in Thread: TPS23754 , TPS23753A Hello,
If I wanted to use the TPS23754/6 as a buck converter, what would I need to do with the following pins:
APD
CLS
PPD
DEN
Vdd
Vdd1
After reading the 'Implementing a Buck Converter…
Hi Navin,
In the technical documents section of the TPS23753A product page there is an app that describes layout guidelines for EMI compliant PoE design. It describes that if you have a true earth connection, you can connect this ground plane you describe…
Hi Amit, Darwin,
as I see TPS23753A is specially for isolated design. Could this be the key that the PHY of the TM4C129 MCU requires an isolated power supply and does not work well with a buck topology DC/DC? Using an external PoE splitter is also…
Part Number: TPS23758 Other Parts Discussed in Thread: TPS23750 , TL431 , , TPS23730 , TPS23731 , TPS23734 , TPS23753A , TPS23755 I have this part designed in, it's working properly, we've built 20 boards with it, but it is now not available.
I need…
Hi Shichin,
Yes, you can use the same PoE front end design (Magjack and diode bridge) on the TPS23753A design front end as the TPS23756 design front end.
Hi Passerby,
If APD of the TPS23754 is not being used, the higher voltage wins. I recommend looking at the below apps note that describes the different oring conditions in poe.
From the below link, under the technical documents tabs, there is a…
Can you briefly explain what makes the TPS23753A preferable over the LM5071?
We have an AUX input voltage range of 24-56VDC. We would like to offer 12VDC but I guess this is asking too much.
