ADT7482

更新时间： 2024-11-23 11:52:55

品牌	Logo	应用领域
安森美 - ONSEMI		传感器温度传感器
页数	文件大小	规格书
20页	252K
描述
Dual Channel Temperature Sensor and Overtemperature Alarm

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ADT7482 数据手册

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 1°C. The temperature measurement range, which defaults

to 0°C to 127°C, can be switched to a wider measurement range of

from −55°C to +150°C.

http://onsemi.com

MSOP−10

CASE 846AC

MARKING DIAGRAM

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.

T0A

AYWG

T0A = Device Code

= Assembly Location

= Year

= Work Week

Features

= Pb−Free Package

• 1 Local and 2 Remote Temperature Sensors

(Note: Microdot may be in either location)

• 0.25°C Resolution/1°C Accuracy on Remote Channels

• 1°C Resolution/1°C Accuracy on Local Channel

• Automatically Cancels Up to 1.5 kW (Typ) of Resistance in Series

with the Remote Sensors

PIN ASSIGNMENT

• Extended, Switchable Temperature Measurement Range

10 SCLK

0°C to +127°C (Default) or −55°C to +150°C

D1+

D1–

SDATA

• 2−Wire SMBus Serial Interface with SMBus Alert Support

ALERT/THERM2

ADT7482

• Programmable Over/Undertemperature Limits

• Offset Registers for System Calibration

• Up to 2 Overtemperature Fail−Safe THERM Outputs

• Small, 10−Lead MSOP Package

THERM

GND

D2+

D2–

• 240 mA Operating Current, 5 mA Standby Current

• These are Pb−Free Devices

ORDERING INFORMATION

See detailed ordering and shipping information in the package

dimensions section on page 19 of this data sheet.

Applications

• Desktop and Notebook Computers

• Industrial Controllers

• Smart Batteries

• Automotive

• Embedded Systems

• Burn−in Applications

• Instrumentation

Publication Order Number:

December, 2009 − Rev. 3

ADT7482/D

12 3 4 5 6 7...20

中文翻译

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与ADT7482相关器件

型号	品牌	获取价格	描述	数据表
ADT7482ARMZ	ONSEMI	获取价格	Dual Channel Temperature Sensor and Overtemperature Alarm
ADT7482ARMZ	ADI	获取价格	Dual Channel Temperature Sensor and Overtemperature Alarm
ADT7482ARMZ-REEL	ADI	获取价格	Dual Channel Temperature Sensor and Overtemperature Alarm
ADT7482ARMZ-REEL	ONSEMI	获取价格	Dual Channel Temperature Sensor and Overtemperature Alarm
ADT7482ARMZ-REEL7	ADI	获取价格	Switch/Digital Output Temperature Sensor, DIGITAL TEMP SENSOR-SERIAL, 8BIT(s), 2.5Cel, SQU
ADT7482ARMZ-RL	ONSEMI	获取价格	Switch/Digital Output Temperature Sensor, DIGITAL TEMP SENSOR-SERIAL, 11BIT(s), 2.5Cel, SQ
ADT7482ARMZ-RL7	ONSEMI	获取价格	Dual Channel Temperature Sensor and Overtemperature Alarm
ADT7483A	ONSEMI	获取价格	Dual Channel Temperature Sensor and Over Temperature Alarm
ADT7483A	ADI	获取价格	Dual Channel Temperature Sensor and Over Temperature Alarm
ADT7483AARQZ	ADI	获取价格	Dual Channel Temperature Sensor and Over Temperature Alarm

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