ADT7476

更新时间： 2024-11-23 11:47:27

品牌	Logo	应用领域
安森美 - ONSEMI		监视器控制器
页数	文件大小	规格书
67页	608K
描述
dBCOOL Remote Thermal Controller and Voltage Monitor

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中文翻译

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ADT7476 数据手册

ADT7476

dBCOOL^RRemote Thermal

Controller and Voltage

Monitor

The ADT7476 dBCOOL controller is a thermal monitor

and multiple PWM fan controller for noise−sensitive or

power−sensitive applications requiring active system cooling. The

ADT7476 can drive a fan using either a low or high frequency drive

signal and can monitor the temperature of up to two remote sensor

diodes plus its own internal temperature. The part also measures and

controls the speed of up to four fans, so the fans operate at the lowest

possible speed for minimum acoustic noise.

http://onsemi.com

QSOP−24 NB

CASE 492B

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 ADT7476

also provides critical thermal protection to the system using the

bidirectional THERM pin as an output to prevent system or

component overheating.

MARKING DIAGRAMS

ADT7476RQZ

#YYWW

xxxx

Features

• Monitors Up to Five Voltages

• Controls and Monitors Up to Four Fans

• High and Low Frequency Fan Drive Signal

• One On−Chip and Two Remote Temperature Sensors

• Extended Temperature Measurement Range Up to 191°C

= Specific Device Code

= Pb−Free Package

YYWW = Date Code

xxxx

• Automatic Fan Speed Control Mode Controls System Cooling Based

= Assembly Lot Code

on Measured Temperature

• Enhanced Acoustic Mode Dramatically Reduces User Perception of

Changing Fan Speeds

PIN ASSIGNMENT

• Thermal Protection Feature via THERM Output

SDA

SCL

GND

PWM1/XTO

• Monitors Performance Impact of Intel® Pentium® 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

• Pb−Free Package is Available

CCP

+2.5V /THERM

+12V /VID5

VID0/GPIO0

VID1/GPIO1

VID2/GPIO2

VID3/GPIO3

TACH3

+5V

VID4/GPIO4

D1+

ADT7476

D1−

• Halide−Free Packages are Available

16 D2+

PWM2/

SMBALERT

D2−

TACH4/THERM/SMBALERT/

GPIO6/ADDR SELECT

PWM3/ADDREN

TACH1 11

TACH2

ORDERING INFORMATION

See detailed ordering and shipping information in the package

dimensions section on page 66 of this data sheet.

Publication Order Number:

May, 2010 − Rev. 6

ADT7476/D

12 3 4 5 6 7...67

中文翻译

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与ADT7476相关器件

型号	品牌	获取价格	描述	数据表
ADT7476A	ADI	获取价格	dBCool Remote Thermal Controller and Voltage Monitor
ADT7476A	ONSEMI	获取价格	dBCOOL Remote Thermal Controller and Voltage Monitor
ADT7476AARQZ	ONSEMI	获取价格	dBCOOL Remote Thermal Controller and Voltage Monitor
ADT7476AARQZ	ADI	获取价格	dBCool Remote Thermal Controller and Voltage Monitor
ADT7476AARQZ-R	ONSEMI	获取价格	dBCOOL Remote Thermal Controller and Voltage Monitor
ADT7476AARQZ-REEL	ADI	获取价格	dBCool Remote Thermal Controller and Voltage Monitor
ADT7476AARQZ-REEL7	ADI	获取价格	dBCool Remote Thermal Controller and Voltage Monitor
ADT7476AARQZ-RL7	ONSEMI	获取价格	dBCOOL Remote Thermal Controller and Voltage Monitor
ADT7476ARQH	ONSEMI	获取价格	dBCOOL Remote Thermal Controller and Voltage Monitor
ADT7476ARQH-REEL	ONSEMI	获取价格	dBCOOL Remote Thermal Controller and Voltage Monitor

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