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ADT7473ARQZ

更新时间: 2024-02-28 15:37:15
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监控控制器
页数 文件大小 规格书
76页 1929K
描述
dBCool Remote Thermal Monitor and Fan Controller

ADT7473ARQZ 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:TransferredReach Compliance Code:unknown
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.31最大精度(摄氏度):2.5 Cel
主体宽度:3.9 mm主体高度:1.6 mm
主体长度或直径:4.9 mm外壳:PLASTIC
JESD-609代码:e3安装特点:SURFACE MOUNT
位数:8最大工作电流:3 mA
最高工作温度:125 °C最低工作温度:-40 °C
输出接口类型:2-WIRE 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:Matte Tin (Sn)端接类型:SOLDER

ADT7473ARQZ 数据手册

 浏览型号ADT7473ARQZ的Datasheet PDF文件第2页浏览型号ADT7473ARQZ的Datasheet PDF文件第3页浏览型号ADT7473ARQZ的Datasheet PDF文件第4页浏览型号ADT7473ARQZ的Datasheet PDF文件第5页浏览型号ADT7473ARQZ的Datasheet PDF文件第6页浏览型号ADT7473ARQZ的Datasheet PDF文件第7页 
dBCool® Remote Thermal  
Monitor and Fan Controller  
ADT7473  
FEATURES  
GENERAL DESCRIPTION  
Controls and monitors up to 4 fans  
High and low frequency fan drive signal  
The ADT7473 dBCool controller is a thermal monitor and  
multiple PWM fan controller for noise sensitive or power  
sensitive applications requiring active system cooling. The  
ADT7473 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 they operate at the  
lowest possible speed for minimum acoustic noise.  
1 on-chip and 2 remote temperature sensors  
Series resistance cancellation on the remote channel  
Extended temperature measurement range, up to 191°C  
Dynamic TMIN control mode optimizes system acoustics  
intelligently  
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® Pentium®4 processor  
Thermal control circuit via THERM input  
The automatic fan speed control loop optimizes fan speed for a  
given temperature. A unique dynamic TMIN control mode  
enables the system thermals/acoustics to be intelligently  
managed. The effectiveness of the systems thermal solution can  
be monitored using the  
input. The ADT7473 also  
THERM  
provides critical thermal protection to the system using the  
bidirectional pin as an output to prevent system or  
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)  
THERM  
component overheating.  
Fully ROHS compliant  
FUNCTIONAL BLOCK DIAGRAM  
SCL SDA SMBALERT  
ADT7473  
SERIAL BUS  
INTERFACE  
PWM  
PWM1  
REGISTERS  
AND  
ACOUSTIC  
ENHANCEMENT  
CONTROL  
AUTOMATIC  
FAN SPEED  
CONTROL  
PWM2  
PWM3  
CONTROLLERS  
(HF AND LF)  
ADDRESS  
POINTER  
REGISTER  
DYNAMIC  
T
MIN  
CONTROL  
PWM  
TACH1  
TACH2  
TACH3  
TACH4  
CONFIGURATION  
REGISTERS  
FAN  
SPEED  
COUNTER  
INTERRUPT  
MASKING  
PERFORMANCE  
MONITORING  
INTERRUPT  
STATUS  
THERMAL  
THERM  
PROTECTION  
REGISTERS  
V
TOADT7473  
SRC  
CC  
V
CC  
D1+  
D1–  
D2+  
D2–  
INPUT  
SIGNAL  
LIMIT  
COMPARATORS  
10-BIT  
ADC  
CONDITIONING  
AND  
ANALOG  
MULTIPLEXER  
VALUE AND  
LIMIT  
REGISTERS  
V
CCP  
BAND GAP  
REFERENCE  
BAND GAP  
TEMP SENSOR  
GND  
Figure 1.  
Rev. A  
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 registeredtrademarks arethe property of their respective owners.  
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.  
Tel: 781.329.4700  
Fax: 781.461.3113  
www.analog.com  
©2006 Analog Devices, Inc. All rights reserved.  
 

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