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Analog Devices Semiconductor Electronic Components Datasheet

ADM1068 Datasheet

Super Sequencer and Monitor

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Data Sheet
FEATURES
Complete supervisory and sequencing solution for up to
8 supplies
8 supply fault detectors enable supervision of supplies to
<0.5% accuracy at all voltages at 25°C
<1.0% accuracy across all voltages and temperatures
4 selectable input attenuators allow supervision of supplies to
14.4 V on VH
6 V on VP1 to VP3 (VPx)
4 dual-function inputs, VX1 to VX4 (VXx)
High impedance input to supply fault detector with
thresholds between 0.573 V and 1.375 V
General-purpose logic input
8 programmable driver outputs, PDO1 to PDO8 (PDOx)
Open-collector with external pull-up
Push/pull output, driven to VDDCAP or VPx
Open collector with weak pull-up to VDDCAP or VPx
Internally charge-pumped high drive for use with external
N-FET (PDO1 to PDO6 only)
Sequencing engine (SE) implements state machine control of
PDO outputs
State changes conditional on input events
Enables complex control of boards
Power-up and power-down sequence control
Fault event handling
Interrupt generation on warnings
Watchdog function can be integrated in SE
Program software control of sequencing through SMBus
Device powered by the highest of VPx, VH for improved
redundancy
User EEPROM: 256 bytes
Industry-standard 2-wire bus interface (SMBus)
Guaranteed PDO low with VH, VPx = 1.2 V
Available in 32-lead 7 mm × 7 mm LQFP
APPLICATIONS
Central office systems
Servers/routers
Multivoltage system line cards
DSP/FPGA supply sequencing
In-circuit testing of margined supplies
Super Sequencer and Monitor
ADM1068
FUNCTIONAL BLOCK DIAGRAM
REFOUT REFGND SDA SCL A1 A0
ADM1068
VREF
SMBus
INTERFACE
EEPROM
VX1
VX2
VX3
VX4
VP1
VP2
VP3
VH
AGND
VDDCA P
DUAL-
FUNCTION
INPUTS
(LOGIC INPUTS
OR
SFDs)
PROGRAMMABLE
RESET
GENERATORS
(SFDs)
SEQUENCING
ENGINE
CONFIGURABLE
OUTPUT
DRIVERS
(HV CAPABLE OF
DRIVING GATES
OF N-FET)
CONFIGURABLE
OUTPUT
DRIVERS
(LV CAPABLE
OF DRIVING
LOGIC SIGNALS)
VDD
ARBITRATOR
VCCP GND
Figure 1.
PDO1
PDO2
PDO3
PDO4
PDO5
PDO6
PDO7
PDO8
PDOGND
GENERAL DESCRIPTION
The ADM1068 Super Sequencer® is a configurable supervisory/
sequencing device that offers a single-chip solution for supply
monitoring and sequencing in multiple supply systems.
The device also provides up to eight programmable inputs for
monitoring undervoltage faults, overvoltage faults, or out-of-
window faults on up to eight supplies. In addition, eight
programmable outputs can be used as logic enables. Six of these
programmable outputs can also provide up to a 12 V output for
driving the gate of an N-FET that can be placed in the path of
a supply.
The logical core of the device is a sequencing engine. This state-
machine-based construction provides up to 63 different states.
This design enables very flexible sequencing of the outputs,
based on the condition of the inputs.
The ADM1068 is controlled via configuration data that can be
programmed into an EEPROM. The whole configuration can
be programmed using an intuitive GUI-based software package
provided by Analog Devices, Inc.
For more information about the ADM1068 register map, refer
to the AN-721 Application Note.
Rev. D
Document Feedback
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 ©2005–2015 Analog Devices, Inc. All rights reserved.
Technical Support
www.analog.com


Analog Devices Semiconductor Electronic Components Datasheet

ADM1068 Datasheet

Super Sequencer and Monitor

No Preview Available !

ADM1068* Product Page Quick Links
Last Content Update: 08/30/2016
Comparable Parts
View a parametric search of comparable parts
Evaluation Kits
• ADM1067 Evaluation Board
Documentation
Application Notes
• AN-0973: Erasing and Programming the Sequencing
Engine EEPROM
• AN-0975: Automatic Generation of State Diagrams for the
ADM1062 to ADM1069 Using Graphviz
• AN-0997: Ping-Pong Configuration Guide for ADM1062 to
ADM1069 Devices
• AN-1001: Checksum Calculations
• AN-1009: Block Erasing, Reading and Writing to the
ADM106x EEPROM
• AN-1086: Using an ADM106x in a Hot Swap Application
• AN-721: ADM1068/ADM1069/ADM1168/ADM1169
Configuration Registers
• AN-722: Watchdog Detection Using the ADM106x
• AN-723: Interrupt Generation Using the ADM106x
• AN-780: Monitoring Negative Voltages with the ADM1062
to ADM1069 Super Sequencers
• AN-781: Monitoring Additional Supplies with the
ADM1062-ADM1069 Super Sequencers™
• AN-782: Monitoring High Voltages with the ADM1062-
ADM1069 Super Sequencers™
• AN-897: ADC Readback Code
Data Sheet
• ADM1068: Super Sequencer™ and Monitor Data Sheet
User Guides
• SuperSequencer Documentation
• UG-404: USB-SDP-CABLEZ Serial Interface Board
Software and Systems Requirements
• ADMxxxx Common Run-Time
• SuperSequencer Software
Reference Materials
Informational
• Optical and High Speed Networking ICs
Product Selection Guide
• Supervisory Devices Complementary Parts Guide for Altera
FPGAs
• Supervisory Devices Complementary Parts Guide for Xilinx
FPGAs
Solutions Bulletins & Brochures
• Power Supply Sequencing Bulletin (2007)
Design Resources
• ADM1068 Material Declaration
• PCN-PDN Information
• Quality And Reliability
• Symbols and Footprints
Discussions
View all ADM1068 EngineerZone Discussions
Sample and Buy
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Technical Support
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number
* This page was dynamically generated by Analog Devices, Inc. and inserted into this data sheet. Note: Dynamic changes to
the content on this page does not constitute a change to the revision number of the product data sheet. This content may be
frequently modified.


Part Number ADM1068
Description Super Sequencer and Monitor
Maker Analog Devices
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ADM1068 Datasheet PDF






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