ADM1064ACP-REEL7 查看數據表（PDF） - Analog Devices

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ADM1064ACP-REEL7

Super Sequencer™ with Voltage Readback ADC

Analog Devices 

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

12-bit ADC for readback of all supervised voltages

2 auxiliary (single-ended) ADC inputs

Reference input, REFIN, has 2 input options:

Driven directly from 2.048V (±0.25%) REFOUT pin

More accurate external reference for improved ADC

performance

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

Super Sequencer™ with

Voltage Readback ADC

ADM1064

FUNCTIONAL BLOCK DIAGRAM

AUX1 AUX2

REFIN REFOUT REFGND SDA SCL A1 A0

ADM1064

VREF

SMBus

INTERFACE

VX1

VX2

VX3

VX4

VX5

VP1

VP2

VP3

VP4

VH

AGND

12-BIT

SAR ADC

DUAL-

FUNCTION

INPUTS

(LOGIC INPUTS

OR

SFDs)

PROGRAMMABLE

RESET

GENERATORS

(SFDs)

SEQUENCING

ENGINE

EEPROM

CONFIGURABLE

OUTPUT

DRIVERS

(HV CAPABLE

OF DRIVING

GATES OF

N-CHANNEL FET)

PDO1

PDO2

PDO3

PDO4

PDO5

PDO6

CONFIGURABLE

OUTPUT

DRIVERS

(LV CAPABLE

OF DRIVING

LOGIC SIGNALS)

VDD

ARBITRATOR

PDO7

PDO8

PDO9

PDO10

PDOGND

VDDCAP

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 ADM1064 is a configurable supervisory/sequencing device

that offers a single-chip solution for supply monitoring and

sequencing in multiple supply systems. In addition to these

functions, the ADM1064 integrates a 12-bit ADC which can be

used to accurately read back up to 12 separate voltages.

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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 © 2004 Analog Devices, Inc. All rights reserved.

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