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LTC4257 - IEEE 802.3af PD Power over Ethernet Interface Controller

Linear Technology

The LTC4257 by Linear Technology is a IEEE 802.3af PD Power over Ethernet Interface Controller. Below is the official datasheet preview.

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LTC4257 IEEE 802.3af PD Power over Ethernet Interface Controller by Linear Technology - Datasheet Preview — Official preview page of the LTC4257 IEEE 802.3af PD Power over Ethernet Interface Controller datasheet (Linear Technology).

Datasheet Details

Part number	LTC4257
Manufacturer	Linear Technology
File Size	263.42 KB
Description	IEEE 802.3af PD Power over Ethernet Interface Controller
Datasheet	LTC4257_LinearTechnology.pdf
Additional preview pages of the LTC4257 datasheet.

LTC4257 Product details

Features

Complete Power Interface Port for IEEE 802.3af® Powered Devices (PDs).
Onboard 100V, 400mA Power MOSFET.
Precision Input Current Limit.
Onboard 25k Signature Resistor.
Programmable Classification Current (Class 0-4).
Undervoltage Lockout.
Smart Thermal Protection.
Power Good Signal.
Available in 8-Pin SO and Low Profile (3mm × 3mm) DFN Packages U.

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Published: Sep 21, 2009 |