Datasheet > ADT7475_18

ADT7475_18

更新时间： 2024-11-24 01:17:15

品牌	Logo	应用领域
安森美 - ONSEMI		/
页数	文件大小	规格书
58页	539K
描述
Remote Thermal Monitor and Fan Controller

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数据手册

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ADT7475_18 数据手册

ADT7475

Remote Thermal Monitor

and Fan Controller

The ADT7475 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.

http://onsemi.com

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.

QSOP−16

CASE 492

PIN ASSIGNMENT

SCL

SDA

Features

GND

PWM1/XTO

• Controls and Monitors Up to 4 Fans

CCP

• 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

TACH3

D1+

D1−

D2+

D2−

ADT7475

(Top View)

PWM2/

SMBALERT

TACH1

TACH2

PWM3

TACH4/GPIO/

THERM/

SMBALERT

• Enhanced Acoustic Mode Dramatically Reduces User Perception of

Changing Fan Speeds

• Thermal Protection Feature via THERM Output

MARKING DIAGRAM

• Monitors Performance Impact of Intel Pentium 4 Processor

• Thermal Control Circuit via THERM Input

• 3-wire and 4-wire Fan Speed Measurement

ADT7475

ARQZ

#YYWW

• Limit Comparison of All Monitored Values

• Meets SMBus 2.0 Electrical Specifications

(Fully SMBus 1.1 Compliant)

• These Devices are Pb-Free, Halogen Free/BFR Free and are RoHS

Compliant

ADT7475ARQZ = Specific Device Code

= Pb-Free Package

= Date Code

YYWW

ORDERING INFORMATION

See detailed ordering and shipping information in the package

dimensions section on page 57 of this data sheet.

Publication Order Number:

August, 2018 − Rev. 8

ADT7475/D

12 3 4 5 6 7...58

中文翻译

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与ADT7475_18相关器件

型号	品牌	获取价格	描述	数据表
ADT7475ARQ	ADI	获取价格	ADT7475ARQ
ADT7475ARQ-REEL	ADI	获取价格	ADT7475ARQ-REEL
ADT7475ARQ-REEL7	ADI	获取价格	ADT7475ARQ-REEL7
ADT7475ARQZ	ONSEMI	获取价格	dBCOOL Remote Thermal Monitor and Fan Controller
ADT7475ARQZ	ADI	获取价格	dBCool Remote Thermal Monitor and Fan Controller
ADT7475ARQZ-REEL	ADI	获取价格	dBCool Remote Thermal Monitor and Fan Controller
ADT7475ARQZ-REEL	ONSEMI	获取价格	dBCOOL Remote Thermal Monitor and Fan Controller
ADT7475ARQZ-REEL7	ADI	获取价格	dBCool Remote Thermal Monitor and Fan Controller
ADT7475ARQZ-RL7	ONSEMI	获取价格	dBCOOL Remote Thermal Monitor and Fan Controller
ADT7476	ADI	获取价格	dBCool Remote Thermal Controller and Voltage Monitor

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