LTC4271 datasheet(2/34 Pages) AD

2 / 34 page

Data Sheet

LTC9101-2A/LTC9102

TABLE OF CONTENTS

analog.com

Rev. 0 | 2 of 34

Features................................................................ 1

Applications........................................................... 1

Description.............................................................1

Typical Application.................................................1

Absolute Maximum Ratings...................................3

LTC9101-2A....................................................... 3

LTC9102.............................................................3

ESD Caution.......................................................3

Pin Configuration................................................... 4

Ordering Information..............................................5

Electrical Characteristics....................................... 6

Typical Performance Characteristics................... 10

Test Timing Diagrams.......................................... 14

I2C Timing Diagrams........................................ 15

Pin Functions.......................................................16

Applications Information...................................... 18

Overview.......................................................... 18

802.3at 2-Pair Operation..................................18

PoE Basics.......................................................18

Device Configuration........................................20

Operating Modes..............................................20

Detection.......................................................... 20

Classification.................................................... 21

Power Control...................................................22

Serial Digital Interface...................................... 24

Isolation Requirements.....................................25

External Component Selection.........................25

Layout Requirements....................................... 30

Typical Applications............................................. 31

Package Description............................................32

Typical Application...............................................34

Related Parts....................................................34

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