ADM1168

Rev. 0 | Page 2 of 28

TABLE OF CONTENTS

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

 

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

 

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

 

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

 

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

 

Detailed Block Diagram .................................................................. 3

 

Specifications..................................................................................... 4

 

Absolute Maximum Ratings............................................................ 6

 

Thermal Resistance ...................................................................... 6

 

ESD Caution.................................................................................. 6

 

Pin Configuration and Function Descriptions............................. 7

 

Typical Performance Characteristics ............................................. 8

 

Powering the ADM1168 ................................................................ 10

 

Inputs................................................................................................ 11

 

Supply Supervision..................................................................... 11

 

Programming the Supply Fault Detectors............................... 11

 

Input Comparator Hysteresis.................................................... 12

 

Input Glitch Filtering ................................................................. 12

 

Supply Supervision with VXx Inputs....................................... 13

 

VXx Pins as Digital Inputs ........................................................ 13

 

Outputs ............................................................................................ 14

 

Supply Sequencing Through Configurable Output Drivers. 14

 

Default Output Configuration.................................................. 14

 

Sequencing Engine ......................................................................... 15

 

Overview ..................................................................................... 15

 

Warnings...................................................................................... 15

 

SMBus Jump (Unconditional Jump)........................................ 15

 

Sequencing Engine Application Example ............................... 16

 

Fault and Status Reporting........................................................ 17

 

Nonvolatile Black Box Fault Recording................................... 17

 

Black Box Writes with No External Supply ............................ 18

 

Applications Diagram .................................................................... 19

 

Communicating with the ADM1168........................................... 20

 

Configuration Download at Power-Up................................... 20

 

Updating the Configuration ..................................................... 20

 

Updating the Sequencing Engine............................................. 21

 

Internal Registers........................................................................ 21

 

EEPROM ..................................................................................... 21

 

Serial Bus Interface..................................................................... 22

 

SMBus Protocols for RAM and EEPROM.............................. 24

 

Write Operations ........................................................................ 24

 

Read Operations......................................................................... 25

 

Outline Dimensions ....................................................................... 27

 

Ordering Guide .......................................................................... 27

 

REVISION HISTORY

4/11—Revision 0: Initial Version