This design showcases a low cost, Type-3, Class 6, 51W flyback converter for powered devices through Power over Ethernet. The TPS2373-3 PD controller provides detection and classification while also powering up the LM51551-Q1 PWM controller through its advanced startup feature. This design takes in a 42V-57V PoE input and outputs a 12V rail for applications such as IP network cameras and wireless access points.
In need of an IEEE802.3bt-ready PSE controller? Check out the TPS23881.
| Output voltage options | TIDA-050023.1 |
|---|---|
| Vin (Min) (V) | 42 |
| Vin (Max) (V) | 57 |
| Vout (Nom) (V) | 12 |
| Iout (Max) (A) | 4.25 |
| Output Power (W) | 51 |
| Isolated/Non-Isolated | Isolated |
| Input Type | DC |
| Topology | Flyback- Non Sync |
A fully assembled board has been developed for testing and performance validation only, and is not available for sale.
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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
Detailed overview of design layout for component placement
Files used for 3D models or 2D drawings of IC components
Design file that contains information on physical board layer of design PCB
PCB layer plot file used for generating PCB design layout
Includes TI products in the design and potential alternatives.
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Design guide | Type 3 IEEE802.3bt-ready Flyback Converter PoE PD Reference Design | Oct. 18, 2018 |
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