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LTC4257 Datasheet IEEE 802.3af PD Power over Ethernet Interface Controller

Manufacturer: Linear Technology (now Analog Devices)

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LTC4257 ieee 802.3af pd power over ethernet interface controller by Linear Technology (now Analog Devices) - Datasheet Preview

Datasheet Details

Part number	LTC4257
Manufacturer	Linear Technology (now Analog Devices)
File Size	263.42 KB
Description	IEEE 802.3af PD Power over Ethernet Interface Controller
Datasheet	LTC4257 Datasheet

Overview

U U LTC4257 IEEE 802.3af PD Power over Ethernet Interface Controller.

Key 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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