EVAL-ADM1168LQEBZ【PDF 1/28 页】BOARD EVAL FOR ADM1168LQ

收藏本站

您好，
买卖IC网欢迎您。
请登录
免费注册

买卖IC网

Sheet目录1214

[1页]2页 3页 4页 5页

Super Sequencer and Monitor with

Nonvolatile Fault Recording

Data Sheet

FEATURES

ADM1168

FUNCTIONAL BLOCK DIAGRAM

Complete supervisory and sequencing solution for up to

REFOUT REFGND

SDA SCL

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

DUAL-

FUNCTION

INPUTS

(LOGIC INPUTS

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

to the AN-721 Application Note .

Rev. A

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 registered trademarks are the property of their respective owners.

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

Technical Support www.analog.com

发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

*型号	*数量	厂商	批号	封装

添加更多采购

采购需求

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

我的联系方式