LT4276 Datasheet LTPoE++/PoE+/PoE PD Forward/Flyback Controller

Manufacturer: Linear Technology (now Analog Devices)

LT4276 ltpoe++/poe+/poe pd forward/flyback controller by Linear Technology (now Analog Devices) - Datasheet Preview

Datasheet Details

Part number	LT4276
Manufacturer	Linear Technology (now Analog Devices)
File Size	424.48 KB
Description	LTPoE++/PoE+/PoE PD Forward/Flyback Controller
Datasheet	LT4276 Datasheet

General Description

The LT®4276 is a pin-for-pin compatible family of IEEE 802.3 and LTPoE++ Powered Device (PD) controllers.

It includes an isolated switching regulator controller capable of synchronous operation in both forward and flyback topologies with auxiliary power support.

The LT4276A employs the LTPoE++ classification scheme, receiving 38.7W, 52.7W, 70W or 90W of power at the PD RJ45 connector, and is backwards compatible with IEEE 802.3.

Overview

LT4276 LTPoE++/PoE+/PoE PD Forward/Flyback Controller.

Key Features

n IEEE802.3af/at and LTPoE++™ 90W Powered Device (PD) with Forward/Flyback Controller n LT4276A Supports All of the Following Standards: n LTPoE++ 38.7W, 52.7W, 70W and 90W n IEEE 802.3at 25.5W Compliant n IEEE 802.3af up to 13W Compliant n LT4276B is IEEE 802.3at/af Compliant n LT4276C is IEEE 802.3af Compliant n Superior Surge Protection (100V Absolute Maximum) n Wide Junction Temperature Range (.
40°C to 125°C) n Auxiliary Power Support as Low as 9V n No Opto-Isolator Requir.

More Datasheets from Linear Technology (now Analog Devices)

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