Datasheet > ADM1068ASTZ-REEL7

ADM1068ASTZ-REEL7

更新时间： 2024-02-15 08:43:28

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
26页	423K
描述
Compact Multi-Voltage Sequencer and Supervisor

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技术参数
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ADM1068ASTZ-REEL7 技术参数

是否无铅：	含铅	是否Rohs认证：	符合
生命周期：	Active	零件包装代码：	QFP
包装说明：	LQFP, QFP32,.35SQ,32	针数：	32
Reach Compliance Code：	compliant	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	1.38
可调阈值：	YES	模拟集成电路 - 其他类型：	POWER SUPPLY SUPPORT CIRCUIT
JESD-30 代码：	S-XQFP-G32	JESD-609代码：	e3
长度：	7 mm	湿度敏感等级：	3
信道数量：	8	功能数量：	1
端子数量：	32	最高工作温度：	85 °C
最低工作温度：	-40 °C	封装主体材料：	UNSPECIFIED
封装代码：	LQFP	封装等效代码：	QFP32,.35SQ,32
封装形状：	SQUARE	封装形式：	FLATPACK, LOW PROFILE
峰值回流温度（摄氏度）：	260	电源：	3/5 V
认证状态：	Not Qualified	座面最大高度：	1.6 mm
子类别：	Power Management Circuits	表面贴装：	YES
温度等级：	INDUSTRIAL	端子面层：	Matte Tin (Sn)
端子形式：	GULL WING	端子节距：	0.8 mm
端子位置：	QUAD	处于峰值回流温度下的最长时间：	40
宽度：	7 mm	Base Number Matches：	1

ADM1068ASTZ-REEL7 数据手册

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Super Sequencer and Monitor

Data Sheet

ADM1068

FEATURES

FUNCTIONAL BLOCK DIAGRAM

REFOUT REFGND SDA SCL A1

Complete supervisory and sequencing solution for up to

8 supplies

SMBus

VREF

INTERFACE

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

ADM1068

EEPROM

PDO1

PDO2

PDO3

PDO4

PDO5

PDO6

CONFIGURABLE

OUTPUT

DRIVERS

DUAL-

FUNCTION

INPUTS

VX1

VX2

VX3

VX4

6 V on VP1 to VP3 (VPx)

(LOGIC INPUTS

(HV CAPABLE OF

DRIVING GATES

OF N-FET)

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)

SFDs)

SEQUENCING

ENGINE

CONFIGURABLE

OUTPUT

DRIVERS

VP1

VP2

VP3

PROGRAMMABLE

RESET

GENERATORS

PDO7

PDO8

(LV CAPABLE

OF DRIVING

LOGIC SIGNALS)

(SFDs)

AGND

PDOGND

VDD

ARBITRATOR

VDDCAP

VCCP

GND

Sequencing engine (SE) implements state machine control of

PDO outputs

Figure 1.

State changes conditional on input events

Enables complex control of boards

Power-up and power-down sequence control

Fault event handling

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.

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

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.

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

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.

APPLICATIONS

Central office systems

Servers/routers

Multivoltage system line cards

DSP/FPGA supply sequencing

In-circuit testing of margined supplies

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.

Trademarks and registeredtrademarks arethe property of their respective owners.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Technical Support

www.analog.com

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