DC2583A

Demonstration circuit 2583 is an Ethernet Alliance™ certified IEEE 802.3bt compliant Power over Ethernet (PoE) powered device (PD). It features the LT®4294 PD interface controller and the LT4321 PoE ideal diode bridge controller. The LT4294 provides IEEE 802.3af (PoE, Type 1), IEEE 802.3at (PoE+, Type 2) and IEEE 802.3bt (PoE++, Type 3 and 4) compliant interfacing. The LT4321 controls eight low RDS(ON) (57mohm typical) N-channel FETs to further improve end-to-end power delivery efficiency and ease thermal design. This solution replaces the eight diodes typically found in a passive PoE rectifier bridge. The DC2583A accepts up to 71.3W of delivered power from a PSE via the RJ45 connector or a local 48V DC power supply using the auxiliary supply input.

Note

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party