ADM1066
TABLE OF CONTENTS
Features .............................................................................................. 1
SMBus Jump (Unconditional Jump)........................................ 18
Sequencing Engine Application Example............................... 19
Fault and Status Reporting........................................................ 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 ADM1066........................................... 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........................................................................ 28
Read Operations......................................................................... 30
Outline Dimensions....................................................................... 31
Ordering Guide .......................................................................... 31
Functional Block Diagram .............................................................. 1
Applications....................................................................................... 1
General Description......................................................................... 1
Revision History ............................................................................... 3
Detailed Block Diagram .................................................................. 4
Specifications..................................................................................... 5
Absolute Maximum Ratings............................................................ 8
Thermal Resistance ...................................................................... 8
ESD Caution.................................................................................. 8
Pin Configurations and Function Descriptions ........................... 9
Typical Performance Characteristics ........................................... 11
Powering the ADM1066................................................................ 14
Inputs................................................................................................ 15
Supply Supervision..................................................................... 15
Programming the Supply Fault Detectors............................... 15
Input Comparator Hysteresis.................................................... 15
Input Glitch Filtering ................................................................. 16
Supply Supervision with VXx Inputs....................................... 16
VXx Pins as Digital Inputs ........................................................ 16
Outputs ............................................................................................ 17
Supply Sequencing Through Configurable Output Drivers. 17
Default Output Configuration.................................................. 17
Sequencing Engine ......................................................................... 18
Overview...................................................................................... 18
Warnings...................................................................................... 18
Rev. E | Page 2 of 32
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