ADT7475ARQZ-REEL datasheet(1/58 Pages) ONSEMI

Numer części	ADT7475ARQZ-REEL

Szczegółowy opis	dBCOOL Remote Thermal Monitor and Fan Controller

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Producent	ONSEMI [ON Semiconductor]

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June, 2009 − Rev. 4

1

Publication Order Number:

ADT7475/D

ADT7475

dBCOOLR Remote Thermal

Monitor and Fan Controller

The ADT7475 dBCOOL controller is a thermal monitor and

multiple PWM fan controller for noise−sensitive or power−sensitive

applications requiring active system cooling. The ADT7475 can drive

a fan using either a low or high frequency drive signal, monitor the

temperature of up to two remote sensor diodes plus its own internal

temperature, and measure and control the speed of up to four fans so

that they operate at the lowest possible speed for minimum acoustic

noise.

The automatic fan speed control loop optimizes fan speed for a

given temperature. The effectiveness of the system’s thermal solution

can be monitored using the THERM input. The ADT7475 also

provides critical thermal protection to the system using the

bidirectional THERM pin as an output to prevent system or

component overheating.

Features

• Controls and Monitors Up to 4 Fans

• High and Low Frequency Fan Drive Signal

• 1 On−Chip and 2 Remote Temperature Sensors

• Extended Temperature Measurement Range, Up to 191°C

• Automatic Fan Speed Control Mode Controls System Cooling Based

on Measured Temperature

• Enhanced Acoustic Mode Dramatically Reduces User Perception of

Changing Fan Speeds

• Thermal Protection Feature via THERM Output

• Monitors Performance Impact of Intel PentiumR 4 Processor

• Thermal Control Circuit via THERM Input

• 3−Wire and 4−Wire Fan Speed Measurement

• Limit Comparison of All Monitored Values

• Meets SMBus 2.0 Electrical Specifications

(Fully SMBus 1.1 Compliant)

• This is a Pb−Free Device

• Fully RoHS Compliant

http://onsemi.com

See detailed ordering and shipping information in the package

dimensions section on page 57 of this data sheet.

ORDERING INFORMATION

MARKING

DIAGRAM

PIN ASSIGNMENT

#

= Pb−Free Package

YYWW = Date Code

12

11

10

9

D1–

D2+

D2–

16

15

14

13

SDA

PWM1/XTO

VCCP

D1+

5

6

7

8

TACH1

TACH2

PWM3

1

2

3

4

SCL

GND

VCC

TACH3

ADT7475

TOP VIEW

PWM2/

SMBALERT

TACH4/GPIO/THERM

SMBALERT

ADT7475

ARQZ

#YYWW

QSOP−16

CASE 492

Podobny numer części - ADT7475ARQZ-REEL

Producent	Numer części	Arkusz danych	Szczegółowy opis
Analog Devices	ADT7475ARQZ-REEL	1Mb / 68P	dBCool Remote Thermal Monitor and Fan Controller REV. A
ON Semiconductor	ADT7475ARQZ-REEL	539Kb / 58P	Remote Thermal Monitor and Fan Controller August, 2018 ??Rev. 8
ON Semiconductor	ADT7475ARQZ-REEL	539Kb / 58P	Remote Thermal Monitor and Fan Controller August, 2018 ??Rev. 8
Analog Devices	ADT7475ARQZ-REEL7	1Mb / 68P	dBCool Remote Thermal Monitor and Fan Controller REV. A

More results

Podobny opis - ADT7475ARQZ-REEL

Producent	Numer części	Arkusz danych	Szczegółowy opis
Analog Devices	ADT7467	1Mb / 80P	dBCool Remote Thermal Monitor and Fan Controller REV. 0
ON Semiconductor	ADT7475_1110	639Kb / 58P	dbCOOL Remote Thermal Monitor and Fan Controller October, 2011 ??Rev. 5
Analog Devices	ADT7473	1Mb / 76P	dBCool Remote Thermal Monitor and Fan Controller REV. A
ON Semiconductor	ADT7460	645Kb / 46P	dBCOOL Remote Thermal Monitor and Fan Controller June, 2010 ??Rev. 5
ON Semiconductor	ADT7467	938Kb / 77P	dBCool Remote Thermal Monitor and Fan Controller January 2008 ??Rev. 3
Analog Devices	ADT7475	1Mb / 68P	dBCool Remote Thermal Monitor and Fan Controller REV. A
ON Semiconductor	ADT7473	1Mb / 74P	dBCOOL Remote Thermal Monitor and Fan Control April, 2009 ??Rev. 6
ON Semiconductor	ADT7473	1Mb / 74P	dbCOOL Remote Thermal Monitor and Fan Control October, 2011 ??Rev. 7
Analog Devices	ADT7490	1Mb / 76P	dBCool Remote Thermal Monitor and Fan Controller with PECI Interface Rev. 0
Analog Devices	ADT7490	1Mb / 76P	dBCool Remote Thermal Monitor and Fan Controller with PECI Interface REV. 0

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