ADT7467
dbCOOL Remote Thermal
Monitor and Fan Controller
The ADT7467 dbCOOL 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.
The automatic fan speed control loop optimizes fan speed for a
given temperature. A unique dynamic T MIN control mode enables the
system thermals/acoustics to be intelligently managed. The
effectiveness of the system’s thermal solution can be monitored using
the THERM input. The ADT7467 also provides critical thermal
http://onsemi.com
QSOP ? 16
CASE 492
PIN ASSIGNMENT
protection to the system using the bidirectional THERM pin as an
output to prevent system or component overheating.
Features
SCL
GND
V CC
1
2
3
16
15
14
SDA
PWM1/XTO
V CCP
?
?
?
?
?
?
Controls and Monitors up to 4 Fans
High and Low Frequency Fan Drive Signal
1 On-chip and 2 Remote Temperature Sensors
Series Resistance Cancellation on the Remote Channel
Extended Temperature Measurement Range, up to 191 ? C
Dynamic T MIN Control Mode Intelligently Optimizes System
Acoustics
TACH3
PWM2/
SMBALERT
TACH1
TACH2
PWM3
4
5
6
7
8
ADT7467
(Top View)
13
12
11
10
9
D1+
D1 ?
D2+
D2 ?
TACH4/GPIO/
THERM/
SMBALERT
?
?
?
?
?
Automatic Fan Speed Control Mode Manages 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
MARKING DIAGRAM
T7467A
RQZ
#YYWW
?
?
?
2-wire, 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)
T7467ARQZ
#
YY
WW
= Specific Device Code
= Pb-Free Package
= Date Code
= Work Week
?
?
This Device is Pb-Free and is RoHS Compliant*
Halide-Free Packages are Available
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 70 of this data sheet.
* For additional information on our Pb-Free strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
? Semiconductor Components Industries, LLC, 2012
May, 2012 ? Rev. 4
1
Publication Order Number:
ADT7467/D
相关PDF资料
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相关代理商/技术参数
ADT7468 制造商:AD 制造商全称:Analog Devices 功能描述:dBCool⑩ Remote Thermal Controller and Voltage Monitor
ADT7468ARQ 功能描述:IC REMOTE THERMAL CTRLR 24-QSOP RoHS:否 类别:集成电路 (IC) >> PMIC - 热管理 系列:dBCool® 标准包装:1 系列:- 功能:温度监控系统(传感器) 传感器类型:内部和外部 感应温度:-40°C ~ 125°C,外部传感器 精确度:±2.5°C 本地(最大值),±5°C 远程(最大值) 拓扑:ADC,比较器,寄存器库 输出类型:2 线 SMBus? 输出警报:无 输出风扇:无 电源电压:2.7 V ~ 5.5 V 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:SOT-23-8 供应商设备封装:SOT-23-8 包装:Digi-Reel® 其它名称:296-22675-6
ADT7468ARQ-REEL 功能描述:IC REMOTE THERMAL CTRLR 24-QSOP RoHS:否 类别:集成电路 (IC) >> PMIC - 热管理 系列:dBCool® 标准包装:1 系列:- 功能:温度监控系统(传感器) 传感器类型:内部和外部 感应温度:-40°C ~ 125°C,外部传感器 精确度:±2.5°C 本地(最大值),±5°C 远程(最大值) 拓扑:ADC,比较器,寄存器库 输出类型:2 线 SMBus? 输出警报:无 输出风扇:无 电源电压:2.7 V ~ 5.5 V 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:SOT-23-8 供应商设备封装:SOT-23-8 包装:Digi-Reel® 其它名称:296-22675-6
ADT7468ARQ-REEL7 功能描述:IC REMOTE THERMAL CTRLR 24-QSOP RoHS:否 类别:集成电路 (IC) >> PMIC - 热管理 系列:dBCool® 标准包装:1 系列:- 功能:温度监控系统(传感器) 传感器类型:内部和外部 感应温度:-40°C ~ 125°C,外部传感器 精确度:±2.5°C 本地(最大值),±5°C 远程(最大值) 拓扑:ADC,比较器,寄存器库 输出类型:2 线 SMBus? 输出警报:无 输出风扇:无 电源电压:2.7 V ~ 5.5 V 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:SOT-23-8 供应商设备封装:SOT-23-8 包装:Digi-Reel® 其它名称:296-22675-6
ADT7468ARQZ 功能描述:板上安装温度传感器 RMT THRM CTR VLT MON RoHS:否 制造商:Omron Electronics 输出类型:Digital 配置: 准确性:+/- 1.5 C, +/- 3 C 温度阈值: 数字输出 - 总线接口:2-Wire, I2C, SMBus 电源电压-最大:5.5 V 电源电压-最小:4.5 V 最大工作温度:+ 50 C 最小工作温度:0 C 关闭: 安装风格: 封装 / 箱体: 设备功能:Temperature and Humidity Sensor
ADT7468ARQZ-REEL 功能描述:板上安装温度传感器 RMT THRM CTR VLT MON RoHS:否 制造商:Omron Electronics 输出类型:Digital 配置: 准确性:+/- 1.5 C, +/- 3 C 温度阈值: 数字输出 - 总线接口:2-Wire, I2C, SMBus 电源电压-最大:5.5 V 电源电压-最小:4.5 V 最大工作温度:+ 50 C 最小工作温度:0 C 关闭: 安装风格: 封装 / 箱体: 设备功能:Temperature and Humidity Sensor
ADT7468ARQZ-REEL7 功能描述:IC REMOTE THERMAL CTRLR 24QSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 热管理 系列:dBCool® 标准包装:1 系列:- 功能:温度监控系统(传感器) 传感器类型:内部和外部 感应温度:-40°C ~ 125°C,外部传感器 精确度:±2.5°C 本地(最大值),±5°C 远程(最大值) 拓扑:ADC,比较器,寄存器库 输出类型:2 线 SMBus? 输出警报:无 输出风扇:无 电源电压:2.7 V ~ 5.5 V 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:SOT-23-8 供应商设备封装:SOT-23-8 包装:Digi-Reel® 其它名称:296-22675-6
ADT7468ARQZ-RL7 功能描述:板上安装温度传感器 RMT THRM CTR VLT MON RoHS:否 制造商:Omron Electronics 输出类型:Digital 配置: 准确性:+/- 1.5 C, +/- 3 C 温度阈值: 数字输出 - 总线接口:2-Wire, I2C, SMBus 电源电压-最大:5.5 V 电源电压-最小:4.5 V 最大工作温度:+ 50 C 最小工作温度:0 C 关闭: 安装风格: 封装 / 箱体: 设备功能:Temperature and Humidity Sensor