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ADT7467ARQ-REEL7

更新时间： 2024-11-22 04:04:47
品牌 Logo 应用领域
亚德诺 - ADI 风扇监控控制器
页数 文件大小 规格书
80页 1026K
描述
dBCool Remote Thermal Monitor and Fan Controller

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ADT7467ARQ-REEL7 数据手册

 浏览型号ADT7467ARQ-REEL7的Datasheet PDF文件第2页浏览型号ADT7467ARQ-REEL7的Datasheet PDF文件第3页浏览型号ADT7467ARQ-REEL7的Datasheet PDF文件第4页浏览型号ADT7467ARQ-REEL7的Datasheet PDF文件第5页浏览型号ADT7467ARQ-REEL7的Datasheet PDF文件第6页浏览型号ADT7467ARQ-REEL7的Datasheet PDF文件第7页 
dBCool™ Remote Thermal  
Monitor and Fan Controller  
ADT7467  
FEATURES  
GENERAL DESCRIPTION  
Controls and monitors up to 4 fans  
High and low frequency fan drive signal  
The ADT7467 dBCOOLTM controller is a thermal monitor and  
multiple PWM fan controller for noise-sensitive or power-  
sensitive applications requiring active system cooling. The  
ADT7467 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.  
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  
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 system's thermal solution can  
Monitors performance impact of Intel® Pentium™ 4  
processor  
Thermal control circuit via THERM input  
2-wire, 3-wire, and 4-wire fan speed measurement  
Limit comparison of all monitored values  
THERM  
be monitored using the  
provides critical thermal protection to the system using the  
THERM  
input. The ADT7467 also  
bidirectional  
pin as an output to prevent system or  
component overheating.  
Meets SMBus 2.0 electrical specifications  
(fully SMBus 1.1 compliant)  
FUNCTIONAL BLOCK DIAGRAM  
SCL SDA SMBALERT  
SERIAL BUS  
INTERFACE  
ADDRESS  
POINTER  
REGISTER  
AUTOMATIC  
FAN SPEED  
CONTROL  
ACOUSTIC  
ENHANCEMENT  
CONTROL  
PWM1  
PWM2  
PWM3  
PWM REGISTERS  
AND  
CONTROLLERS  
HF & LF  
PWM  
CONFIGURATION  
REGISTERS  
DYNAMIC  
T
MIN  
TACH1  
TACH2  
TACH3  
TACH4  
CONTROL  
FAN SPEED  
COUNTER  
INTERRUPT  
MASKING  
PERFORMANCE  
MONITORING  
THERMAL  
PROTECTION  
THERM  
INTERRUPT  
STATUS  
REGISTERS  
V
TO ADT7467  
SRC  
CC  
V
ADT7467  
CC  
D1+  
D1–  
D2+  
D2–  
LIMIT  
COMPARATORS  
INPUT  
SIGNAL  
CONDITIONING  
AND  
10-BIT  
ADC  
ANALOG  
MULTIPLEXER  
VALUE AND  
LIMIT  
V
CCP  
BAND GAP  
REFERENCE  
REGISTERS  
BAND GAP  
TEMP SENSOR  
GND  
Figure 1.  
Rev. 0  
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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ADT7467ARQ-REEL7 替代型号

型号 品牌 替代类型 描述 数据表
ADT7467ARQZ-REEL ADI

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