This reference design implements a Power over Ethernet (PoE) Power Device (PD) flyback converter with 12-V and 3.8-A output. TPS23730 PD and PWM controller provide all necessary functions to implement the PoE PD and PWM control for the flyback converter. TPS23730 uses primary side regulation (PSR), eliminating the need for optocoupler feedback. An input power-limiting circuit enables the output to be paralleled with a second converter for increased output-power capability.
| Output voltage options | PMP22477.1 |
|---|---|
| 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- 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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| Type | Title | Date | ||
|---|---|---|---|---|
| Test report | Class 6 PoE PD Flyback Conv. (12 V, 3.8 A) W/ Input Power Limiting & PSR Ref Des | PDF | HTML | Mar. 15, 2022 |
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