ADM1065 datasheet, PDF - EEWORLD Datasheet

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ADM1065: DescriptionSuper Sequencer-TM and Monitor; File Size468KB，28 Pages; ManufacturerADI; Websitehttps://www.analog.com

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ADM1065 Overview

Super Sequencer-TM and Monitor

User Manual

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Super Sequencer™ and Monitor

ADM1065

FEATURES

Complete supervisory and sequencing solution for up to

10 supplies

10 supply fault detectors enable supervision of supplies to

better than 1% accuracy

5 selectable input attenuators allow supervision:

Supplies up to 14.4 V on VH

Supplies up to 6 V on VP1–4

5 dual-function inputs, VX1–5:

High impedance input to supply fault detector with

thresholds between 0.573 V and 1.375 V

General-purpose logic input

10 programmable output drivers (PDO1–10):

Open collector with external pull-up

Push/pull output, driven to VDDCAP or VPn

Open collector with weak pull-up to VDDCAP or VPn

Internally charge-pumped high drive for use with external

N-FET (PDO1–6 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 VP1–4, VH for improved

redundancy

User EEPROM: 256 bytes

Industry-standard 2-wire bus interface (SMBus)

Guaranteed PDO low with VH, VPn = 1.2 V

40-lead 6 mm × 6 mm LFCSP and

48-lead 7 mm × 7 mm TQFP packages

FUNCTIONAL BLOCK DIAGRAM

REFIN

REFOUT REFGND

SDA SCL A1

VREF

SMBus

INTERFACE

ADM1065

EEPROM

VX1

VX2

VX3

VX4

VX5

DUAL-

FUNCTION

INPUTS

(LOGIC INPUTS

SFDs)

SEQUENCING

ENGINE

CONFIGURABLE

OUTPUT

DRIVERS

(HV CAPABLE

OF DRIVING

GATES OF

N-CHANNEL FET)

PDO1

PDO2

PDO3

PDO4

PDO5

PDO6

VP1

VP2

VP3

VP4

AGND

VDDCAP

VDD

ARBITRATOR

PROGRAMMABLE

RESET

GENERATORS

(SFDs)

CONFIGURABLE

OUTPUT

DRIVERS

(LV CAPABLE

OF DRIVING

LOGIC SIGNALS)

PDO7

PDO8

PDO9

PDO10

PDOGND

GND

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 ADM1065 is a configurable supervisory/sequencing device

that offers a single-chip solution for supply monitoring and

sequencing in multiple supply systems.

(continued on Page 3)

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.

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

Tel: 781.329.4700

www.analog.com

Fax: 781.326.8703

04634-001

ADM1065

TABLE OF CONTENTS

General Description ......................................................................... 3

Specifications..................................................................................... 4

Pin Configurations and Function Descriptions ........................... 6

Absolute Maximum Ratings............................................................ 7

Thermal Characteristics .............................................................. 7

ESD Caution.................................................................................. 7

Typical Performance Characteristics ............................................. 8

Powering the ADM1065 ................................................................ 10

Inputs................................................................................................ 11

Supply Supervision..................................................................... 11

Programming the Supply Fault Detectors............................... 11

Input Comparator Hysteresis.................................................... 12

Input Glitch Filtering ................................................................. 12

Supply Supervision with VXn Inputs....................................... 12

VXn Pins as Digital Inputs........................................................ 13

Outputs ............................................................................................ 14

Supply Sequencing through Configurable Output Drivers .. 14

Sequencing Engine ......................................................................... 15

Overview...................................................................................... 15

Warnings...................................................................................... 15

SMBus Jump/Unconditional Jump .......................................... 15

Sequencing Engine Application Example ............................... 16

Sequence Detector...................................................................... 17

Monitoring Fault Detector ........................................................ 17

Timeout Detector ....................................................................... 17

Fault Reporting........................................................................... 17

Applications Diagram .................................................................... 18

Communicating with the ADM1065 ........................................... 19

Configuration Download at Power-Up................................... 19

Updating the Configuration ..................................................... 19

Updating the Sequencing Engine............................................. 20

Internal Registers........................................................................ 20

EEPROM ..................................................................................... 20

Serial Bus Interface..................................................................... 20

Write Operations ........................................................................ 22

Read Operations......................................................................... 24

Outline Dimensions ....................................................................... 26

Ordering Guide .......................................................................... 26

REVISION HISTORY

10/04—Revision 0: Initial Version

Rev. 0 | Page 2 of 28

ADM1065 Related Products

	ADM1065	ADM1065ACP	ADM1065ACP-REEL7	ADM1065ACP-REEL	EVAL-ADM1065LFEB	EVAL-ADM1065TQEB
Description	Super Sequencer-TM and Monitor	Super Sequencer-TM and Monitor	Super Sequencer-TM and Monitor	Super Sequencer-TM and Monitor	Super Sequencer-TM and Monitor	Super Sequencer-TM and Monitor

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