Datasheet
ADM1166
Rev. 0 | Page 2 of 32
TABLE OF CONTENTS
Features .............................................................................................. 1
Functional Block Diagram .............................................................. 1
Applications ....................................................................................... 1
General Description ......................................................................... 1
Revision History ............................................................................... 2
Detailed Block Diagram .................................................................. 3
Specifications ..................................................................................... 4
Absolute Maximum Ratings ............................................................ 7
Thermal Resistance ...................................................................... 7
ESD Caution .................................................................................. 7
Pin Configurations and Function Descriptions ........................... 8
Typical Performance Characteristics ........................................... 10
Powering the ADM1166 ................................................................ 13
Inputs ................................................................................................ 14
Supply Supervision ..................................................................... 14
Programming the Supply Fault Detectors ............................... 14
Input Comparator Hysteresis .................................................... 14
Input Glitch Filtering ................................................................. 15
Supply Supervision with VXx Inputs ....................................... 15
VXx Pins as Digital Inputs ........................................................ 15
Outputs ............................................................................................ 16
Supply Sequencing Through Configurable Output Drivers . 16
Default Output Configuration .................................................. 16
Sequencing Engine ......................................................................... 17
Overvie w ...................................................................................... 17
Warnings ...................................................................................... 17
SMBus Jump (Unconditional Jump) ........................................ 17
Sequencing Engine Application Example ............................... 18
Fault and Status Reporting ........................................................ 19
Nonvolatile Black Box Fault Recording ................................... 20
Black Box Writes with No External Supply ............................ 20
Voltage Readback............................................................................ 21
Supply Supervision with the ADC ........................................... 21
Supply Margining ........................................................................... 22
Overview ..................................................................................... 22
Open-Loop Supply Margining ................................................. 22
Closed-Loop Supply Margining ............................................... 22
Writing to the DACs .................................................................. 23
Choosing the Size of the Attenuation Resistor ....................... 23
DAC Limiting and Other Safety Features ............................... 23
Applications Diagram .................................................................... 24
Communicating with the ADM1166 ........................................... 25
Configuration Download at Power-Up ................................... 25
Updating the Configuration ..................................................... 25
Updating the Sequencing Engine ............................................. 26
Internal Registers ........................................................................ 26
EEPROM ..................................................................................... 26
Serial Bus Interface ..................................................................... 26
SMBus Protocols for RAM and EEPROM .............................. 28
Write Operations ........................................................................ 29
Read Operations ......................................................................... 30
Outline Dimensions ....................................................................... 32
Ordering Guide .......................................................................... 32
REVISION HISTORY
12/10—Revision 0: Initial Version