Class 3- Isolated Flyback (15V@0.72A) for PoE Applications


Design files


Low-Cost Isolated Non-synchronous flyback converter with 15V at 0.72A output for class 3 POE Applications. PMP5270 accepts input voltages between 36-57Vac. This design uses TPS23753A IEEE 802.3-2005 PoE PD and PWM controller.

Output voltage options PMP5270.1
Vin (Min) (V) 36
Vin (Max) (V) 57
Vout (Nom) (V) 15
Iout (Max) (A) .72
Output Power (W) 10.8
Isolated/Non-Isolated Isolated
Input Type DC
Topology Flyback- Non Sync^POE

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.

SLVR494.PDF (426 K)

Test results for the reference design, including efficiency graphs, test prerequisites and more

SLVR493.PDF (56 K)

Detailed schematic diagram for design layout and components

SLVR492.PDF (36 K)

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


Includes TI products in the design and potential alternatives.

Powered devices

TPS23753AIEEE 802.3-2005 PoE interface and Isolated Converter controller with Enhanced ESD Ride-Through

Data sheet document-pdfAcrobat PDF open-in-new HTML
Shunt voltage references

TL431Adjustable precision shunt regulator

Data sheet document-pdfAcrobat PDF open-in-new HTML

Technical documentation

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Type Title Date
Test report PMP5270 Test Results Nov. 10, 2010

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