Non-Standard PoE, UPOE High-Efficiency Flyback Converter Reference Design for PoE PD Applications


Design files


TIDA-00741 uses two TPS2378 PD controllers for a forced 4-pair UPOE solution to 51W non-standard PoE PD applications. It incorportates the UCC2897A controller in a high-efficiency, great transient response (driven) synch flyback converter capble of 12V at 3.8A.

  • Forced 4-Pair UPOE (51W)
  • 92% high efficiency (converter only)
  • Test Report is Included
  • Board can be purchased
Output voltage options TIDA-00741.1
Vin (Min) (V) 42.5
Vin (Max) (V) 57
Vout (Nom) (V) 12
Iout (Max) (A) 3.8
Output Power (W) 45.6
Isolated/Non-Isolated Isolated
Input Type DC
Topology Flyback- Synchronous^POE
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A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

Download ready-to-use system files to speed your design process.

TIDUB05.PDF (841 K)

Reference design overview and verified performance test data


Detailed schematic diagram for design layout and components


Complete listing of design components, reference designators, and manufacturers/part numbers

TIDCBD0.ZIP (2914 K)

Design file that contains information on physical board layer of design PCB


Includes TI products in the design and potential alternatives.

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Shunt voltage references

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Supervisor & reset ICs

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Technical documentation

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Type Title Date
Design guide TIDA-00741 Test Results Nov. 09, 2015

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