MAX5991A Datasheet (Maxim) - (MAX5991A/B) IEEE 802.3af-Compliant / High-Efficiency / Class 1 / Class 2 / Powered Devices

MAX5991A, (MAX5991A/B) IEEE 802.3af-Compliant / High-Efficiency / Class 1 / Class 2 / Powered Devices

The MAX5991A/MAX5991B provide a complete powersupply solution as IEEE® 802.3af-compliant Class 1/ Class 2 Powered Devices (PDs) in a Power-over-Ethernet (PoE) system.

The devices integrate the PD interface with an efficient DC-DC converter, offering a low external part count PD solution.

The devices

MAX5991A Features

* S IEEE 802.3af Compliant S PoE Class 1/Class 2 Classification S Intelligent Maintain Power Signature (MPS) S Sleep and Ultra-Low Power Mode S Simplified Wall Adapter Interface S Efficient, Integrated DC-DC Converter (with Integrated Switches) S 8.7V to 60V Wide Input Voltage Range S 3.2V to