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LTC4269-2 - IEEE 802.3at High Power PD And Synchronous Forward Controller

General Description

The LTC®4269-2 is an integrated Powered Device (PD) interface and power supply controller featuring 2-event classification signaling, flexible auxiliary power options, and a power supply controller suitable for synchronously rectified forward supplies.

Key Features

  • n 25.5W IEEE 802.3at Compliant (Type-2) PD n PoE+ 2-Event Classification n IEEE 802.3at High Power Available Indicator n Integrated State-of-the-Art Synchronous Forward Controller.
  • Isolated Power Supply Efficiency >94% n Flexible Auxiliary Power Interface n Superior EMI Performance n Robust 100V 0.7Ω (Typ) Integrated Hot Swap™ MOSFET n Integrated Signature Resistor, Programmable Class Current, UVLO, OVLO and Thermal Protection n Short-Circuit Protection with Auto-Restart n Programmable.

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Datasheet Details

Part number LTC4269-2
Manufacturer Linear Technology Corporation
File Size 388.32 KB
Description IEEE 802.3at High Power PD And Synchronous Forward Controller
Datasheet download datasheet LTC4269-2 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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Features n 25.5W IEEE 802.3at Compliant (Type-2) PD n PoE+ 2-Event Classification n IEEE 802.3at High Power Available Indicator n Integrated State-of-the-Art Synchronous Forward Controller – Isolated Power Supply Efficiency >94% n Flexible Auxiliary Power Interface n Superior EMI Performance n Robust 100V 0.7Ω (Typ) Integrated Hot Swap™ MOSFET n Integrated Signature Resistor, Programmable Class Current, UVLO, OVLO and Thermal Protection n Short-Circuit Protection with Auto-Restart n Programmable Switching Frequency from 100kHz to 500kHz n Thermally Enhanced 7mm × 4mm DFN Package Applications n IP Phones with Large Color Screens n Dual Radio 802.11n Access Points n PTZ Security Cameras LTC4269-2 IEEE 802.