MAX5992A/MAX5992B Powered Device Controllers

Analog Devices MAX5992A/MAX5992B Powered Device Controllers provide interface control for PDs to comply with the IEEE® 802.3af/at standard. The controllers are used in a Power-over-Ethernet (PoE) system. The devices provide the PD with a detection signature, classification signature, and an isolation MOSFET driver with current-limit control. In addition, the intelligent maintain power signature (MPS) and active FET bridge control make the PD more power efficient. The devices feature a SIG_OK output signal for high-power Multi-2P PD applications.

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