This design implements a Power over Ethernet (PoE) Class 6 Powered Device (PD) with dual redundant PoE inputs and smooth transition between these inputs and a an auxiliary input. Two TPS2372-3 PD controllers are utilized for high power PoE control up to 51W. A 5V at 9A active clamp forward converter is implemented with the PWM portion of a TPS23734 IC. An INA237A provides input voltage/current/power/temperature measurements via I2C.
| Output voltage options | PMP23366.1 |
|---|---|
| Vin (Min) (V) | 42.5 |
| Vin (Max) (V) | 57 |
| Vout (Nom) (V) | 5 |
| Iout (Max) (A) | 9 |
| Output Power (W) | 45 |
| Isolated/Non-Isolated | Isolated |
| Input Type | DC |
| Topology | Forward- Active Clamp |
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| Type | Title | Date | ||
|---|---|---|---|---|
| Test report | Dual-Input Redundant PoE Class 6 PD With Smooth Transition and Telemetry Reference Design | PDF | HTML | May 21, 2024 |
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