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| 型号： | ADM1168ASTZ-RL7 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 1/28页 |
| 文件大小： | 0K |
| 描述： | IC SEQUENCER/SUPERVISOR 32LQFP |
| 标准包装： | 500 |
| 系列： | Super Sequencer® |
| 应用： | 电源监控器，序列发生器 |
| 输入电压： | 3 V ~ 14.4 V |
| 电源电压： | 3 V ~ 14.4 V |
| 电流 - 电源： | 4.2mA |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 32-LQFP |
| 供应商设备封装： | 32-LQFP（7x7） |
| 包装： | 带卷 (TR) |
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Super Sequencer and Monitor with
Nonvolatile Fault Recording
Data Sheet
FEATURES
FUNCTIONAL BLOCK DIAGRAM
Complete supervisory and sequencing solution for up to
REFOUT REFGND
SDA SCL
A1
A0
8 supplies
16 event deep black box nonvolatile fault recording
8 supply fault detectors enable supervision of supplies to
ADM1168
VREF
SMBus
INTERFACE
<0.5% accuracy at all voltages at 25°C
FAULT RECORDING
EEPROM
<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)
VX1
VX2
VX3
VX4
VP1
VP2
VP3
VH
DUAL-
FUNCTION
INPUTS
(LOGIC INPUTS
OR
SFDs)
PROGRAMMABLE
RESET
GENERATORS
(SFDs)
SEQUENCING
ENGINE
CONFIGURABLE
OUTPUT
DRIVERS
(HV CAPABLE OF
DRIVING GATES
OF NFET)
CONFIGURABLE
OUTPUT
DRIVERS
(LV CAPABLE
OF DRIVING
LOGIC SIGNALS)
PDO1
PDO2
PDO3
PDO4
PDO5
PDO6
PDO7
PDO8
Open-collector with external pull-up
Push/pull output, driven to VDDCAP or VPx
Open-collector with weak pull-up to VDDCAP or VPx
AGND
VDDCAP
VDD
ARBITRATOR
PDOGND
Internally charge-pumped high drive for use with external
VCCP
GND
NFET (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
Figure 1.
GENERAL DESCRIPTION
The ADM1168 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 NFET 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.
A block of nonvolatile EEPROM is available that can be used to
store user-defined information and may also be used to hold a
number of fault records that are written by the sequencing engine
defined by the user when a particular fault or sequence occurs.
The ADM1168 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 ADM1168 register map, refer
Rev. A
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.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 ?2011–2013 Analog Devices, Inc. All rights reserved.
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