Part Number: TPS23754 Other Parts Discussed in Thread: CSD19534Q5A , PMP9563 Hi Sir,
We found PoE failure issue on a few samples.Our preliminary analysis is high-side MOSFET(Q803) of secondary side short to GND. After we replaced new MOSFET ,PoE can…
Standard compliant (IEEE 802.3at) implementations do not envision paralleled PDs on one power feed. This is aligned to data handling.
Please see/read TPS23754 datasheet for some information in the applications section regarding how a type 2 system…
Part Number: TPS23754 SCHEMATIC1 _ 01-POE DC to DC.pdf Hi Sir
could you help why Gate2 & Gate pin fail (IC is GONE), when we fast switch power input(the voltage is 48V) every 3s?
THX
PIKE
we observed that R66 in series with the CS pin is placed on the solder side and rest of the connections for CS is on Component side.. does this cause any overload ?
we also tried connecting a resistor directly from the C46 to Mosfet(Q7) pin 1 with 1k…
SLVA440 is really geared towards a type 1 (<13W) POE application and uses TPS23753A (type 1 PD controller). I couldn't find any handy existing reference designs that support 24V at 10W, but you should be able to achieve the 24V output (your input voltage…
There are numberous sources of information about PoE.
1) The PoE standard is available for free download from the IEEE (802.3at the updated clause 33, and the whole IEEE802.3-2008).
2) There have been numberous articles published on the web over…
Other Parts Discussed in Thread: TPS23754EVM-383 , TPS23754 I have a design very similar to the -383 eval board. However. when I try and power it on it never comes up. It acts like it is starting to and then resets. The duty cycle appears to be at a minimum…
Other Parts Discussed in Thread: STRIKE , TPS23754 , TPS23754EVM-383 Greetings,
I'm a hobbyist working on a personal project. Let me first explain what my objectives are and then follow up with a few questions.
Here is what I'm designing:
1) A Raspberry…
You could use the dc/dc controller portion of the TPS23757 to control an 18W power supply (for an adapter powered dc/dc converter). For power applied over an ethernet cable (type 1 PD is limited to 13W at the RJ45 connector input), a compliant type 1…
In most cases the active clamp forward topology will not be chosen for low power designs. TPS23757 is mostly P2P compatible with TPS23754 so you could use a design like PMP5818 to start with.
PMP5983 is not on the web but is a 5V, 2.5A design using…
