Class 3- Low Cost 12V/1A Flyback Converter for PoE Applications Reference Design


Design files


This converter is used for Class 3 PoE applications. The flyback converter with diode rectifier offers low cost while still achieving good efficiency. This converter is well sutied for PoE applications such as IP security cameras. The TPS23753A contains both the PoE Powered Device and the PWM controller functions.

  • Ethernet Alliance certified for receiving Class 3 power
Output voltage options PMP8803.1
Vin (Min) (V) 36
Vin (Max) (V) 57
Vout (Nom) (V) 12
Iout (Max) (A) 1
Output Power (W) 12
Isolated/Non-Isolated Isolated
Input Type DC
Topology Flyback- Non Sync^POE
Communications equipment
Enterprise systems
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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.

SLVU861.PDF (482 K)

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

SLVRB28.PDF (39 K)

Detailed schematic diagram for design layout and components

SLVRB29.PDF (191 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: PDF | HTML
Shunt voltage references

TL431Adjustable precision shunt regulator

Data sheet: PDF | HTML

Technical documentation

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Type Title Date
Test report PMP8803 Test Results Feb. 01, 2013

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