Analog Devices ADM1063 Manual

FEATURES

Complete supervisory and sequencing solution for up to
10 supplies
10 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
5 selectable input attenuators allow supervision of supplies to
14.4 V on VH
6 V on VP1 to VP4 (VPx)
5 dual-function inputs, VX1 to VX5 (VXx)
High impedance input to supply fault detector with
thresholds between 0.573 V and 1.375 V
General-purpose logic input
10 programmable driver outputs, PDO1 to PDO10 (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 PDOx 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
Complete voltage margining solution for 6 voltage rails
12-bit ADC for readback of all supervised voltages
1 internal and 2 external temperature sensors
Reference input (REFIN) has 2 input options
Driven directly from 2.048 V (±0.25%) REFOUT pin
More accurate external reference for improved
ADC performance
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 40-lead, 6 mm × 6 mm LFCSP and
48-lead, 7 mm × 7 mm TQFP packages
For more information about the ADM1063 register map,
refer to the AN-698 Application Note at www.analog.com.
Rev. C
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.
Trademarks and registered trademarks are the property of their respective owners.
Multisupply Supervisor/Sequencer with
ADC and Temperature Monitoring
D1P
VX1
VX2
VX3
VX4
VX5
VP1
VP2
VP3
VP4
VH
AGND

APPLICATIONS

Central office systems
Servers/routers
Multivoltage system line cards
DSP/FPGA supply sequencing
In-circuit testing of margined supplies

GENERAL DESCRIPTION

The ADM1063 is a configurable supervisory/sequencing device
that offers a single-chip solution for supply monitoring and
sequencing in multiple supply systems. In addition to these
functions, the ADM1063 integrates a 12-bit ADC that can be
used to accurately read back up to 12 separate voltages.
The device also provides up to 10 programmable inputs for
monitoring undervoltage faults, overvoltage faults, or out-of-
window faults on up to 10 supplies. In addition, 10 programmable
outputs can be used as logic enables. Six of these programmable
outputs can 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.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113

FUNCTIONAL BLOCK DIAGRAM

D1N D2P D2N REFIN REFOUT REFGND
VREF
TEMP INTERNAL
SENSOR DIODE
12-BIT
SAR ADC
CLOSED-LOOP
MARGINING SYSTEM
DUAL-
FUNCTION
INPUTS
(LOGIC INPUTS
OR
SFDs)
SEQUENCING
ENGINE
PROGRAMMABLE
RESET
GENERATORS
(SFDs)
ADM1063
Figure 1.
©2005–2011 Analog Devices, Inc. All rights reserved.
ADM1063
SDA SCL A1 A0
SMBus
INTERFACE
EEPROM
PDO1
CONFIGURABLE
OUTPUT PDO2
DRIVERS
PDO3
PDO4
(HV CAPABLE OF
PDO5
DRIVING GATES
OF N-FET)
PDO6
PDO7
CONFIGURABLE
OUTPUT
PDO8
DRIVERS
(LV CAPABLE
PDO9
OF DRIVING
LOGIC SIGNALS)
PDO10
PDOGND
VDD
VDDCAP
ARBITRATOR
VCCP GND
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