ADM1069
Preliminary Technical Data
TABLE OF CONTENTS
General Description.........................................................................3
Rev. PrB | Page 2 of 32
Specifications.....................................................................................4
Pin Configuration and Function Descriptions.............................7
Absolute Maximum Ratings............................................................8
Thermal Characteristics..............................................................8
ESD Caution..................................................................................8
Typical Performance Characteristics.............................................9
Powering the ADM1069................................................................12
Inputs................................................................................................13
Supply Supervision.....................................................................13
Programming the Supply Fault Detectors...............................13
Input Comparator Hysteresis....................................................14
Input Glitch Filtering.................................................................14
Supply Supervision with VXn Inputs.......................................14
VXn Pins as Digital Inputs........................................................15
Outputs ............................................................................................16
Supply Sequencing through Configurable Output Drivers..16
Sequencing Engine.........................................................................17
Overview......................................................................................17
Warnings......................................................................................17
SMBus Jump/Unconditional Jump..........................................17
Sequencing Engine Application Example...............................18
Sequence Detector......................................................................19
Monitoring Fault Detector........................................................19
Timeout Detector....................................................................... 19
Fault Reporting........................................................................... 19
Voltage Readback............................................................................ 20
Supply Supervision with the ADC........................................... 20
Supply Margining........................................................................... 21
Overview ..................................................................................... 21
Open-Loop Margining.............................................................. 21
Closed-Loop Supply Margining............................................... 21
Writing to the DACs.................................................................. 22
Choosing the Size of the Attenuation Resistor....................... 22
DAC Limiting/Other Safety Features...................................... 22
Applications Diagram.................................................................... 23
Communicating with the ADM1069........................................... 24
Configuration Download at Power-Up................................... 24
Updating the Configuration..................................................... 24
Updating the Sequencing Engine............................................. 25
Internal Registers........................................................................ 25
EEPROM..................................................................................... 25
Serial Bus Interface..................................................................... 25
Write Operations........................................................................ 27
Read Operations......................................................................... 29
Outline Dimensions....................................................................... 31
Ordering Guide .......................................................................... 31
REVISION HISTORY
11/04—Revision PrB: Preliminary Version