DC1567A

LINEAR TECHNOLOGY DC1567A Demonstration Board, Power Over Ethernet POE, Fast Shutdown, IEEE 802.3 Type 1/2

Demonstration circuit 1567A features the LTC4274, a single power sourcing equipment controller designed for use in IEEE 802.3 Type 1 and Type 2 compliant Power over Ethernet systems. The LTC4274 is configured in the as a midspan power injector where data comes in from an existing network system and out, along with power, to a powered device. The LTC4274 autonomously detects a PD, turns power on to the port, and disconnects port power without the need for a microcontroller

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A 2-event classification and a two second backoff timer support the midspan configuration.

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Only a single 55V supply is required

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Lowest-in-industry heat dissipation