参数资料
| 型号： | EVAL-ADM1166TQEBZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 1/32页 |
| 文件大小： | 0K |
| 描述： | BOARD EVAL FOR ADM1166TQ |
| 标准包装： | 1 |
| 系列： | * |
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Super Sequencer with Margining Control
and Nonvolatile Fault Recording
ADM1166
FEATURES
FUNCTIONAL BLOCK DIAGRAM
Complete supervisory and sequencing solution for up to
10 supplies
16 event deep black box nonvolatile fault recording
AUX1 AUX2
REFIN
ADM1166
REFOUT REFGND
VREF
SDA SCL A1
SMBus
INTERFACE
A0
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
12-BIT
SAR ADC
CLOSED-LOOP
MARGINING SYSTEM
FAULT RECORDING
EEPROM
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
VX1
VX2
VX3
VX4
VX5
VP1
VP2
VP3
VP4
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)
PDO1
PDO2
PDO3
PDO4
PDO5
PDO6
PDO7
PDO8
PDO9
Push/pull output, driven to VDDCAP or VPx
VH
PDO10
Open collector with weak pull-up to VDDCAP or VPx
Internally charge-pumped high drive for use with external
AGND
V OUT
DAC
V OUT
DAC
V OUT
DAC
V OUT
DAC
V OUT
DAC
V OUT
DAC
VDD
ARBITRATOR
PDOGND
VDDCAP
N-FET (PDO1 to PDO6 only)
Sequencing engine (SE) implements state machine control of
DAC1 DAC2 DAC3 DAC4 DAC5 DAC6
VCCP GND
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
Complete voltage-margining solution for 6 voltage rails
6 voltage output 8-bit DACs (0.300 V to 1.551 V) allow voltage
adjustment via dc-to-dc converter trim/feedback node
12-bit ADC for readback of all supervised voltages
2 auxiliary (single-ended) ADC inputs
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 ADM1166 register map,
refer to the AN-698 Application Note
Rev. 0
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.
Figure 1.
APPLICATIONS
Central office systems
Servers/routers
Multivoltage system line cards
DSP/FPGA supply sequencing
In-circuit testing of margined supplies
GENERAL DESCRIPTION
The ADM1166 Super Sequencer? 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 ADM1166 integrates a 12-bit ADC and
six 8-bit voltage output DACs. These circuits can be used to
implement a closed-loop margining system that enables supply
adjustment by altering either the feedback node or reference of
a dc-to-dc converter using the DAC outputs.
Supply margining can be performed with a minimum of external
components. The margining loop can be used for in-circuit testing
of a board during production (for example, to verify board func-
tionality at ?5% of nominal supplies), or it can be used dynamically
to accurately control the output voltage of a dc-to-dc converter.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 www.analog.com
Fax: 781.461.3113 ?2010 Analog Devices, Inc. All rights reserved.
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