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?Semiconductor Components Industries, LLC, 2012
July, 2012  Rev. 4
1
Publication Order Number:
ADT7482/D
ADT7482
Dual Channel Temperature
Sensor and Overtemperature
Alarm
The ADT7482 is a three-channel digital thermometer and
under/overtemperature alarm for PCs and thermal management
systems. It can measure the temperature in two remote locations, such
as in the remote thermal diode in a CPU or GPU, or using a discrete
diode connected transistor. This device also measures its own ambient
temperature.
One feature of the ADT7482 is series resistance cancellation where
up to 1.5 kW (typical) of resistance in series with each of the
temperature monitoring diodes can be automatically cancelled from
the temperature result, allowing noise filtering. The temperature of the
remote thermal diodes and ambient temperature can be measured
accurate to ?癈. The temperature measurement range, which defaults
to 0癈 to 127癈, can be switched to a wider measurement range of
from 55癈 to +150癈.
The ADT7482 communicates over a 2-wire serial interface
compatible with System Management Bus (SMBus) standards. The
default address of the ADT7482 is 0x4C. An ALERT
 output signals
when the on-chip or remote temperature is outside the programmed
limits. The THERM
 output is a comparator output that allows on/off
control of a cooling fan. The ALERT
 output can be reconfigured as a
second THERM
 output if required.
Features
?SPAN class="pst ADT7482ARMZ-REEL_2296055_4"> 1 Local and 2 Remote Temperature Sensors
?SPAN class="pst ADT7482ARMZ-REEL_2296055_4"> 0.25?/SPAN>C Resolution/1?/SPAN>C Accuracy on Remote Channels
?SPAN class="pst ADT7482ARMZ-REEL_2296055_4"> 1?/SPAN>C Resolution/1?/SPAN>C Accuracy on Local Channel
?SPAN class="pst ADT7482ARMZ-REEL_2296055_4"> Automatically Cancels Up to 1.5 kW (Typ) of Resistance in Series
with the Remote Sensors
?SPAN class="pst ADT7482ARMZ-REEL_2296055_4"> Extended, Switchable Temperature Measurement Range
0癈 to +127癈 (Default) or 55癈 to +150癈
?SPAN class="pst ADT7482ARMZ-REEL_2296055_4"> 2-wire SMBus Serial Interface with SMBus Alert Support
?SPAN class="pst ADT7482ARMZ-REEL_2296055_4"> Programmable Over/Undertemperature Limits
?SPAN class="pst ADT7482ARMZ-REEL_2296055_4"> Offset Registers for System Calibration
?SPAN class="pst ADT7482ARMZ-REEL_2296055_4"> Up to 2 Overtemperature Fail-Safe THERM
 Outputs
?SPAN class="pst ADT7482ARMZ-REEL_2296055_4"> Small, 10-lead MSOP Package
?SPAN class="pst ADT7482ARMZ-REEL_2296055_4"> 240mA Operating Current, 5mA Standby Current
?SPAN class="pst ADT7482ARMZ-REEL_2296055_4"> This Device is Pb-Free, Halogen Free and is RoHS Compliant
Applications
?SPAN class="pst ADT7482ARMZ-REEL_2296055_4"> Desktop and Notebook Computers
?SPAN class="pst ADT7482ARMZ-REEL_2296055_4"> Industrial Controllers
?SPAN class="pst ADT7482ARMZ-REEL_2296055_4"> Smart Batteries
?SPAN class="pst ADT7482ARMZ-REEL_2296055_4"> Automotive
?SPAN class="pst ADT7482ARMZ-REEL_2296055_4"> Embedded Systems
?SPAN class="pst ADT7482ARMZ-REEL_2296055_4"> Burn-in Applications
?SPAN class="pst ADT7482ARMZ-REEL_2296055_4"> Instrumentation
MARKING DIAGRAM
http://onsemi.com
See detailed ordering and shipping information in the package
dimensions section on page 19 of this data sheet.
ORDERING INFORMATION
MSOP10
CASE 846AC
T0A
AYWG
G
1
10
PIN ASSIGNMENT
T0A = Device Code
A
= Assembly Location
Y
= Year
W    = Work Week
G
= Pb-Free Package
(Note: Microdot may be in either location)
ALERT
/THERM2
SCLK
SDATA
D2+
D2
V
DD
D1+
D1
THERM
GND
10
9
8
7
6
5
4
3
2
1
ADT7482
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ADT7482ARMZ-REEL7 功能描述:IC SENSOR TEMP 2CH ALARM 10MSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 热管理 系列:- 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
ADT7482ARMZ-RL7 功能描述:板上安装温度传感器 2 CH TEMP SNSR/ALARM 2 WIRE SMBUS INTRFCE 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
ADT7483A 制造商:AD 制造商全称:Analog Devices 功能描述:Dual Channel Temperature Sensor and Over Temperature Alarm
ADT7483AARQZ 功能描述:板上安装温度传感器 2 TEMP DIODE MONITOR 2 WIRE SMBUS INTRFCE 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
ADT7483AARQZ-R7 功能描述:板上安装温度传感器 2 TEMP DIODE MONITOR 2 WIRE SMBUS INTRFCE 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
ADT7483AARQZ-REEL 功能描述:IC TEMP SENSOR/ALARM 3CH 16-QSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 热管理 系列:- 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
ADT7483AARQZ-REEL7 功能描述:IC TEMP SENSOR/ALARM 3CH 16-QSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 热管理 系列:- 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
ADT7483AARQZ-RL 功能描述:板上安装温度传感器 2 TEMP DIODE MONITOR 2 WIRE SMBUS INTRFCE 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