ADM1033ARQZ-REEL datasheet(1/35 Pages) ONSEMI

Il numero della parte	ADM1033ARQZ-REEL

Spiegazioni elettronici	Thermal Monitor and Fan Speed (RPM) Controller

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Produttore elettronici	ONSEMI [ON Semiconductor]

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 Semiconductor Components Industries, LLC, 2012

April, 2012 − Rev. 3

1

Publication Order Number:

ADM1033/D

ADM1033

Thermal Monitor and Fan

Speed (RPM) Controller

The ADM1033 is a one channel remote- and local-temperature

sensor and fan controller. The remote channel monitors the

temperature of the remote thermal diode, which may be discrete

2N3904/6s or may be located on a microprocessor die. The device also

monitors its own ambient temperature.

The ADM1033 can monitor and control the speed of cooling fan.

The user can program a target fan speed, or else use the look-up table

to input a temperature-to-fan speed profile. The look-up table can be

configured to run the fans at discrete speeds (discrete mode) or to ramp

the fan speed with temperature (linear mode).

The ADM1033 communicates over a 2-wire SMBus 2.0 interface.

An 8-level LOCATION input allows the user to choose between

SMBus 1.1 and SMBus 2.0. An ALERT output indicates error

conditions. The THERM I/O signals overtemperature as an output and

times THERM assertions as an input. Pin 8 can be configured as a

reference for the THERM (PROCHOT) input.

Features

 1 Local and Remote Temperature Channels

 1C Accuracy on Local and Remote Channels

 Automatic Remote Temperature Channel, Up to 1 kW

 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_FAULT Output

 THERM Input, Used to Time PROCHOT Assertions

 REF Input, Used as Reference for THERM (PROCHOT)

 3.0 V to 5.5 V Supply

 Small 16-lead QSOP Package

 This is a Pb-Free Device*

Applications

 Desktop and Notebook PCs

 Embedded Systems

 Telecommunications Equipment

 LCD Projectors

* For additional information on our Pb-Free strategy and soldering details, please

download the ON Semiconductor Soldering and Mounting Techniques

Reference Manual, SOLDERRM/D.

http://onsemi.com

PIN ASSIGNMENT

(Top View)

See detailed ordering and shipping information in the package

dimensions section on page 34 of this data sheet.

ORDERING INFORMATION

1033ARQZ = Specific Device Code

#

= Pb-Free Package

YY

= Date Code

WW

= Work Week

MARKING DIAGRAM

QSOP−16

CASE 492

ALERT

SCL

SDA

LOCATION

NC

D1+

D1−

NC

DRIVE1

TACH1

ALERT Comp

NC

GND

VCC

THERM

FAN_FAULT/REF

16

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

ADM1033

1033A

RQZ

#YYWW

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