George,
As the Si3404-A is limited to Type 1 operation, I suggest you look at Type 1 limited solutions from Texas Instruments in order to be price competitive. The most price competitive solution, available in mass production today, is the TPS23753A…
Hi Henry,
The EVM design showcases the evaluation of the power using the TPS23753A and not a final end product system level design.
The transformer alone is a 1500VAC after looking at its datasheet and the isolation spacing will probably need to…
Hi Joey,
1. Applying 48V power supply to two of the pairs of the cable should be okay.
2. The current limit of the TPS23754 is fixed and not adjustable.
3. Using the TPS23754 in a 12V/1A non-synch flyback should be okay.
Please see PMP6812 for…
Hi Calvin,
While LM5070 will work, it is from an older line of products. The TPS23753A is a newer and cost effective IC and as such is a more frequently used part with many app notes, a design guide, EVMs, and TI reference designs associated with it…
Other Parts Discussed in Thread: TPS23753A
I'm using a TPS23753A to design a PD with no need for data passthrough. The device will be a "dumb" dead end device that just acquires power through PoE.
Reference the schematic snippet below from PMP7298…
Other Parts Discussed in Thread: TPS23750 , TPS23753A , TIDA-00079 Hello guys,
Our customer is evaluating TPS23750. But now they want to add 5V AC adapter input as another power input,
I thought that TLC23753A could be used for that. But it is seems…
Hi Ferhat,
If you are looking for a design to evaluate in your system, I recommend looking at the TPS23756EVM design as a start. This is 12V/24V/48V adapter capable with minimum rated aux input of 10V and meets your output power requirements. Please…
Hi Jasper,
If using the POE13F-50L, does this mean you are designing with a diode on the secondary? I recommend looking at PMP7355 as a reference when using this transformer with the TPS23753A. There are not too many differences and mostly only component…
HS,
A good place to start is with SLVA305C. It goes through the complete design process for a diode rectified flyback converter operating from a PoE input. The TPS23753A used in SLVA305C is very similar to the TPS23754. The main difference is the TPS23754…
Hello,
The 150mV is added into the equation for marginal error. This topic is discussed at length in the following post:
https://e2e.ti.com/support/power-management/f/196/t/323424?TPS23753A-Question-about-SLVA305C
It can be ignored, or changed…
