Hi Alex,
Please take a look at section 2.7.2 in this app note: http://www.ti.com/lit/an/slva305c/slva305c.pdf
The CS threshold value varies from IC to IC. I use the minimum CS threshold value to calculate the sense resistor value. For example…
Hi Michael,
The goal of D21 on the EVM is to visually show the user that the a Type 2 PSE has been connected to the PD. You can decrease as necessary per the spec of the D21 to increase the brightness.
However, the main purpose in applying this…
Hi Christian,
I recommend using the TPS23754 and its EVM (TPS23754EVM-383) which is a 12V solution. You can order one in the TI store. This would be the best starting point. You can then buck to the 5V rail from there.
Hi Mark,
Does your design require to be IEEE compliant? If so, the output power requirements will fall in the Class 4 power levels. I recommend instead looking into our TPS23754 EVM.
Hi Darwin,
Thanks for quick reply,
I have not worked on POE design before so please suggest me some information becoz iam runing out of time by understanding POE design.
As you suggested after reviewing my schematics changes to be done are:
…
Part Number: TPS23861 Other Parts Discussed in Thread: TPS23754 , I am the FAE of Inspur Group, a leading server and cloud computing provider.
Recently, my customer is evaluating our PoE products, and the attachment is schematic, TPS23861 as PSE, and…
Hi Mojtaba,
1. 6.5V is a very unusual output voltage for PoE so it may be difficult to find an off the shelf transformer. What is the application? You might be able to get away with using the PMP5818 but the duty cycle will be slightly higher. You…
Hi na na,
If small solution size and minimum components is needed, why not consider TPS23751EVM? This is 5V/5A solution that support 24V adatpers. It is a self-driven flyback so you don't have extra bulky components like a gate drive transformer in…
Other Parts Discussed in Thread: TPS23754 , TPS23756 , TPS23756EVM , TPS23752 , TPS23751 , PMP6812 Hi Ti,
I have a case with RJ45+PoE function. The product power is above 13Watts( for LCD power is about 10W). And a auxiliary DC12V is needed for backup…
