Analog Devices MAX5981A/MAX5981B IEEE® 802.3af/at-Compliant, Powered Device (PD) Interface Controllers with Integrated Power MOSFET provide a complete interface for a PD to comply with the IEEE 802.3af/at standard in a power-over-ethernet (PoE) system. Analog Devices MAX5981x PD Interface Controllers provide the PD with a detection signature, a classification signature, and an integrated isolation power switch with inrush current control. MAX5981x supports a 2-Event classification method specified in the IEEE 802.3at standard and provides a signal to indicate when probed by a Type 2 power sourcing equipment (PSE).
