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参数资料
| 型号： | EVAL-ADM1068LQEBZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 1/24页 |
| 文件大小： | 0K |
| 描述： | BOARD EVALUATION FOR ADM1068LQ |
| 标准包装： | 1 |
| 主要目的： | 电源管理，电源监控器/跟踪器/序列发生器 |
| 嵌入式： | 否 |
| 已用 IC / 零件： | ADM1068 |
| 主要属性： | 10 通道监控器 / 序列发生器，6 个电压输出 DAC |
| 次要属性： | 通过 SMBus（通过 USB）实现的可编程 GUI |
| 已供物品： | 2 个板，线缆，CD |
| 相关产品： | ADM1068ASTZ-REEL7-ND - IC SEQUENCER/SUPERVISOR 32LQFP ADM1068ASTZ-ND - IC SUPERVISOR/SEQUENCER 32-LQFP |
Super Sequencer and Monitor
FEATURES
FUNCTIONAL BLOCK DIAGRAM
Complete supervisory and sequencing solution for up to
REFOUT REFGND
SDA SCL A1
A0
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
ADM1068
VREF
SMBus
INTERFACE
EEPROM
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
VX1
VX2
VX3
VX4
VP1
VP2
VP3
VH
AGND
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
PDOGND
Open collector with weak pull-up to VDDCAP or VPx
Internally charge-pumped high drive for use with external
VDDCAP
VDD
ARBITRATOR
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
VCCP
GND
Figure 1.
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
For more information about the ADM1068 register map,
refer to the AN-721 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.
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.
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 ?2005–2011 Analog Devices, Inc. All rights reserved.
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