Other Parts Discussed in Thread: TPS23753A 2313.SW_StartUp.pdf
Hi
Please teach me about the rise waveform of TPS23753A.
There is 3ms stop switching timing when TPS23753A rise timing.(Pls. see attached file.)
Is this normal operation?
Thanks…
Hi Mauricio,
Here's my comment:
Current solutions for 802.af(PoE), 802.3at(PoE+), LTPoE++:
802.af: PSE: TPS23861 PD:Front End only:LM5073,TPS2376-H,TPS2375/7-1,TPS2375/7; Front End+DCDC:TPS23757,TPS23753A,TPS23750/70,LM5070/1
802.at: PSE:TPS23861…
Other Parts Discussed in Thread: TPS23753A , PMP8803 , PMP Hi
The PMP8803 is a reference design using the TPS23753A for 12V 1A. How is it possible to modify it for 12V 1.1A?
regards
Madhuri
Other Parts Discussed in Thread: TPS23753A , TPS23756 , TPS23756EVM Hi
Is TPS23753A possible to work with this condition? Input->DC12V to PoE voltage, output->5V/15W
Should we use the TPS23756?
PAN-M
Other Parts Discussed in Thread: TPS23753A , TPS23753AEVM-004 Hi,
Inductor L2 is not written in the BOM list of the following user's guide.
http://www.ti.com/lit/ug/slvu314b/slvu314b.pdf
TPS23753AEVM-004: Evaluation Module for TPS23753A
What…
ORing issues and some considerations are also discussed at a high level in the TPS23753A datasheet and the TPS23754A datasheet. There are a few fundamental limitations that you might run into in trying to create a seamless switch, and in general they…
Hi Sergei,
Take a look at the feedback values in the attached 23V reference design (PMP21655). Notice R29: it there to make sure the minimum cathode current is satisfied to allow for regulation (see Imin on TL431 datasheet for sizing that R20 resistor…
You might check for: hitting the current limit, saturating the inductor (and either hitting current limit or causing a loop instability or both), loop instability, excessive "spike" noise on the current sense, excessive output ripple fed back (usually…
Applying Vin between J1 pins 3 and 4 should allow the circuit to work properly and there is no ramp or slew requirement. It seems that the TPS23753A may have been damaged so the internal hotswap is not functional. Without power applied, can you measure…
Other Parts Discussed in Thread: TPS23753AEVM-001 , TPS23753AEVM-004 , TPS23753A I need the output of the TPS23753AEVM-001 to be 3.6V ~10W instead of the 5V/2A (10W), is this doable? Can this be done by changing one of the feedback resisitors....the 24…
