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ADT7470ARQ-REEL7

更新时间： 2024-02-01 11:24:40
品牌 Logo 应用领域
亚德诺 - ADI 风扇传感器换能器温度传感器输出元件控制器
页数 文件大小 规格书
40页 519K
描述
Temperature Sensor Hub and Fan Controller

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ADT7470ARQ-REEL7 技术参数

是否Rohs认证：不符合生命周期：Obsolete
包装说明：MO-137AB, QSOP-16Reach Compliance Code：not_compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.2Is Samacsys：N
主体宽度：3.91 mm主体高度：1.55 mm
主体长度或直径：4.9 mm外壳：PLASTIC
JESD-609代码：e0安装特点：SURFACE MOUNT
位数：7最大工作电流：0.8 mA
最高工作温度：85 °C最低工作温度：-40 °C
输出接口类型：I2C INTERFACE封装形状/形式：RECTANGULAR
传感器/换能器类型：TEMPERATURE SENSOR,SWITCH/DIGITAL OUTPUT,SERIAL最大供电电压：3.6 V
最小供电电压：3 V表面贴装：YES
端子面层：Tin/Lead (Sn85Pb15)端接类型：SOLDER
Base Number Matches：1

ADT7470ARQ-REEL7 数据手册

 浏览型号ADT7470ARQ-REEL7的Datasheet PDF文件第2页浏览型号ADT7470ARQ-REEL7的Datasheet PDF文件第3页浏览型号ADT7470ARQ-REEL7的Datasheet PDF文件第4页浏览型号ADT7470ARQ-REEL7的Datasheet PDF文件第5页浏览型号ADT7470ARQ-REEL7的Datasheet PDF文件第6页浏览型号ADT7470ARQ-REEL7的Datasheet PDF文件第7页 
Temperature Sensor Hub and Fan Controller  
ADT7470  
Preliminary Technical Data  
FEATURES  
GENERAL DESCRIPTION  
Monitors up to 10 remote temperature sensors  
Monitors and controls speed of up to 4 fans independently  
PWM outputs drive each fan under software control  
The ADT7470 controller is a multichannel temperature sensor  
and PWM fan controller and fan speed monitor for noise-  
sensitive systems requiring active system cooling. It is designed  
to interface directly to an I2C bus and control/monitor the fans  
using a service processor. The aim is to quickly develop systems  
that are modular and can easily be expanded depending on the  
system’s cooling requirements. The device can monitor up to ten  
temperature sensors. It can also monitor and control the speed  
of four fans so that they operate at the lowest possible speed for  
FULL_SPEED  
input allows fans to be blasted 100% by  
external hardware  
SMBALERT  
interrupt signals failures to system controller  
Tristate ADDR pin allows up to 3 devices on a single bus  
Temperature decoder interprets TMP05/TMP06 temperature  
sensors and communicates values over I2C bus  
Limit comparison of all monitored values  
Supports fast I2C standard (400 kHz max)  
Meets SMBus 2.0 electrical specifications  
(fully SMBus 1.1 compliant)  
FULL_SPEED  
minimum acoustic noise. A  
input is provided to  
allow the fans to be “blasted” to 100% via external hardware  
control, under extreme thermal conditions or on system startup.  
SMBALERT  
An  
interrupt communicates error conditions such  
Footprint compatible with ADT7460  
as fan underspeed, fan failure to the system service processor.  
Individual error conditions can then be read from status registers  
over the I2C bus. In the event of a fan failure condition, any or  
all PWM outputs can be programmed to automatically adjust to  
100% to provide failsafe cooling.  
APPLICATIONS  
Servers  
Networking and telecommunications equipment  
Desktops  
FUNCTIONAL BLOCK DIAGRAM  
SMBALERT  
SDA SCL  
ADDR  
ADT7470  
SMBus  
ADDRESS  
SELECTION  
SERIAL BUS  
INTERFACE  
FULL_SPEED  
PWM1  
ADDRESS  
POINTER  
REGISTER  
PWM  
REGISTERS  
AND  
AUTOMATIC  
FAN SPEED  
CONTROL  
PWM  
CONFIG  
REGISTERS  
PWM2  
PWM3  
PWM4  
CONTROLLERS  
INTERRUPT  
MASKING  
TACH1  
TACH2  
TACH3  
TACH4  
FAN SPEED  
COUNTERS  
INTERRUPT  
STATUS  
REGISTERS  
TMP_START  
TMP_IN  
LIMIT  
COMPARATORS  
TEMPERATURE  
DECODER  
VALUE AND  
LIMIT  
REGISTERS  
Figure 1.  
Protected by Patent Numbers US6,188,189, US6,169,442, US6,097,239, US5,982,221, US5,867,012. Other patents pending.  
Rev. PrA  
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  
Fax: 781.326.8703  
www.analog.com  
© 2004 Analog Devices, Inc. All rights reserved.  
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