ADM1034 datasheet(1/40 Pages) AD

Teilenummer	ADM1034

Bauteilbeschribung	Thermal Monitor and Fan Speed (RPM) Controller

PDF	40 Pages

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Hersteller	AD [Analog Devices]

Direct Link	http://www.analog.com

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Thermal Monitor and

Fan Speed (RPM) Controller

ADM1034

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

FEATURES

1 local and 2 remote temperature channels

±1°C accuracy on local and remote channels

Automatic remote temperature channels, up to 1 kΩ

Fast (up to 64 measurements per second)

SMBus 2.0, 1.1, and 1.0 compliant

SMBus address input/LOCATION input to UDID

Programmable over-/undertemperature limits

Programmable fault queue

SMBusALERT output

Fail-safe overtemperature comparator output

Fan speed (RPM) controller

Look-up table for temperature-to-fan-speed control

Linear and discrete options for look-up table

FAN_FAULToutput

THERM input, used to time PROCHOT assertions

REF input, used as reference for THERM (PROCHOT)

3 V to 5.5 V supply

Small 16-lead QSOP package

APPLICATIONS

Desktop and notebook PCs

Embedded systems

Telecommunications equipment

LCD projectors

FUNCTIONAL BLOCK DIAGRAM

ANALOG

MULTIPLEXER

TACH1

ALERT

THERM

SDA

SCL

GND

VCC

DRIVE1

ADM1034

TACH2

DRIVE2

LOCATION

SMBUS

ADDRESS

MASK

REGISTERS

FAULT

QUEUE

THERM PERCENT

TIMER

FAULT

QUEUE

HYSTERESIS

REGISTERS

OFFSET

REGISTERS

CONVERSION

RATE REGISTER

CONFIGURATION

REGISTERS

BAND GAP

REFERENCE

BAND GAP

TEMPERATURE

SENSOR

SRC

BLOCK

FAN

SPEED

COUNTER

TEMPERATURE-TO-

FAN-SPEED

LOOK-UP TABLE

MANUAL FAN

SPEED CONTROL

REGISTERS

FAN RESPONSE

TACH SIGNAL

CONDITIONING

FAN SPEED

CONTROLLER

ADC

LIMIT

COMPARATOR

VALUE AND

LIMIT

REGISTERS

STATUS

REGISTER

SERIAL BUS

INTERFACE

ADDRESS

POINTER

REGISTER

D2–

D2+

D1–

D1+

FAN_FAULT

REF

ALERT

THERM

15

8

14

7

16

6

5

12

11

10

9

8

4

2

3

1

13

Figure 1.

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