ADM1172

Rev. 0 | Page 2 of 16

TABLE OF CONTENTS

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

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

General Description ......................................................................... 1

Functional Block Diagram .............................................................. 1

Revision History ............................................................................... 2

Specifications..................................................................................... 3

Absolute Maximum Ratings............................................................ 4

Thermal Characteristics .............................................................. 4

ESD Caution.................................................................................. 4

Pin Configurations and Function Descriptions ........................... 5

Typical Performance Characteristics ............................................. 6

Theory of Operation ...................................................................... 12

Overview...................................................................................... 12

UVLO........................................................................................... 12

ON (ON-CLR) Pin..................................................................... 12

GATE ........................................................................................... 12

Current Limit Function ............................................................. 12

Calculating the Current Limit .................................................. 12

Circuit Breaker Function........................................................... 12

Timer Function........................................................................... 13

Power-Up Timing Cycle ............................................................ 13

Circuit Breaker Timing Cycle................................................... 13

Automatic Retry or Latched Off............................................... 14

Power-Fail Comparator ............................................................. 14

Outline Dimensions ....................................................................... 15

Ordering Guide .......................................................................... 15

REVISION HISTORY

7/06—Revision 0: Initial Version