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Solutions Monitor, Control and Protection Power-over-Ethernet (PoE) Interface Controllers PoE Powered Device (PD)

DC959A - LTC4257-1 High-Power PD Demo Bd

Demonstration circuit 959 is a high-power triple output (37.4W) supply featuring the LTC3825 with the LTC4257-1. This board acts as a pre-standard high power Power-over-Ethernet (PoE) Powered Device (PD) and connects at the RJ45 to a compatible high power Power Sourcing Equipment (PSE) device. The LTC4257-1 provides IEEE802.3af standard PoE PD interfacing. When the PD is fully powered, the LTC4257-1 switches power over to the LTC3825.

DC959A - Schematic