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MAX5969B Datasheet Powered Device Interface Controllers

Manufacturer: Maxim Integrated (now Analog Devices)

Download the MAX5969B datasheet PDF. This datasheet also includes the MAX5969A variant, as both parts are published together in a single manufacturer document.

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Note: The manufacturer provides a single datasheet file (MAX5969A_MaximIntegratedProducts.pdf) that lists specifications for multiple related part numbers.

General Description

The MAX5969A/MAX5969B provide a complete interface for a powered device (PD) to comply with the IEEE® 802.3af/at standard in a power-over-Ethernet (PoE) system.

The MAX5969A/MAX5969B provide the PD with a detection signature, classification signature, and an integrated isolation power switch with inrush current control.

During the inrush period, the MAX5969A/MAX5969B limit the current to less than 180mA before switching to the higher current limit (720mA to 880mA) when the isolation power MOSFET is fully enhanced.

Overview

19-5008; Rev 0; 12/09 TION KIT EVALUA BLE AVAILA IEEE 802.3af/at-Compliant, Powered Device Interface Controllers with Integrated Power.

Key Features

  • S IEEE 802.3af/at Compliant S 2-Event Classification S Simplified Wall Adapter Interface S PoE Classification 0 to 5 S 100V Input Absolute Maximum Rating S Inrush Current Limit of 180mA Maximum S Current Limit During Normal Operation Between 720mA and 880mA S Current Limit and Foldback S Legacy UVLO at 36V (MAX5969A) S IEEE 802.3af/at-Compliant, 40V UVLO (MAX5969B) S Overtemperature Protection S Thermally Enhanced, 3mm x 3mm, 10-Pin TDFN MAX5969A/MAX5969B Ordering Information PART.

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