Part Number: PMP11257
Hello, I would like to find a proper IC which replace under the full bridge rectifier in PMP11257, for saving the space on PCB.
Critical condition : Replaced IC should be applied to PoE architecture. (PAIR12, PAIR34 pin should be…
Nuri,
1. D9 in PMP11257 provides reverse polarity protection on the adapter input. It also blocks the PoE voltage from the adapter. Although not shown on PMP11257, a 58V TVS device (same as D11) should be used after the filtering on the anode of D9 to…
Hi Subin,
Yes, we have a reference design PMP11257 ( https://www.ti.com/tool/PMP11257 ) which uses TPS2378 and LM5116. It is a 12-V 2-A output design. You may configure it to 5-V but the efficiency may drop due to a larger step-down-ratio (from 57Vin-12Vout…
Part Number: TPS2378 Other Parts Discussed in Thread: PMP10812 , PMP11257 hi team,
do we have TPS2378 non-isolation solution reference design? or are there any special requirements for the downstream DCDC to co-work with TPS2378 for non-isolation solution…
Hello,
Please accept my connect request.
The TPS23755 can be used as a PWM controller only, but we do not have a 12V output reference design.
You could just remove the POE section of PMP11257: https://www.ti.com/tool/PMP11257
We do have other Buck 12V…
Hi Jamie,
For a non-isolated small size reference design with 12V/2A output please take a look at PMP11257.
Please let me know if you have any additional questions. Thanks!
Best Regards,
Brett Colteaux
PoE Product Marketing Engineer
Part Number: LM5116 Other Parts Discussed in Thread: LM5146 , , PMP11257 , LM5146-Q1 Hi,
I am concerned about SW node ringing when the high side MOSFET turns on. My Vin is 87V (abs max) but I want to use 100VDS MOSFETs if it all possible. I therefore need…
Hello Frank,
You are correct, the TPS2375 is a type-1 PD, which maximum power is 13W. For 24V output, the max current would then be ~0.5A.
If you want to stick with a buck topology, I would suggest the TPS2378 and pairing it with a pwm controller. An…