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Part Number: PMP20859
What are the benefits of using TPS2372 (PoE High-Power PD Interface with Automatic MPS & Autoclass) in the implementation of a “smooth transition” PoE PD reference design?
The PMP20859 is a Dual-input redundant PoE PD reference design with the smooth transition feature. The smooth transition feature enables the delivery of non-interrupted output power. For the smooth transition to operate, the PoE inputs of the PD must stay connected to the Power Source Equipment (PSE). There is a maintain power signature (MPS) defined in the IEEE802.3bt PoE specification, which is a minimum load that must be maintained for a PSE to stay connected to a PD. The TPS2372 automatically detects when the minimum load is reached and applies a pulsed load (for reduced power dissipation) to satisfy the MPS.
To learn more about the performance of this reference design under typical and stress test conditions, refer to section 2 "Testing and Results" of the User Guide for PMP208959.
You can also download the design files (BOM, Schematic, Gerber) for this reference design from the PMP20859 folder.
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