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ADT7481: Dual Channel Temperature Sensor and Over Temperature Alarm

Datasheet: Dual Channel Temperature Sensor and Over Temperature Alarm
Rev. 9 (241kB)
Product Overview
»View Reliability Data
»View Material Composition
» Product Change Notification
The ADT7481 is a 3-channel digital thermometer and under/over temperature alarm, intended for use in PCs and thermal management systems. It can measure its own ambient temperature or the temperature of two remote thermal diodes. These thermal diodes can be located in a CPU or GPU, or they can be discrete diode connected transistors. The ambient temperature, or the temperature of the remote thermal diiode, can be accurately measured to ±1°C. The temperature measurement range defaults to 0°C to +127°C, compatible with ADM1032, but can be switched to a wider measurement range from -64°C to +191°C.
Features
 
  • 1 Local and 2 Remote Temperature Sensors
  • 0.25°C Resolution/1°C Accuracy on Remote Channels
  • 1°C Resolution/1°C Accuracy on Local Channel
  • Extended, Switchable Temperature Measurement Range 0°C to +127°C (default) or 64°C to +191°C
  • 2-wire SMBus Serial Interface with SMBus Alert Support
  • Programmable Over/Under Temperature Limits
  • Offset Registers for System Calibration
  • Up to 2 over Temperature Fail-safe THERM Outputs
  • 240 µA Operating Current, 5 µA Standby Current
Applications   End Products
  • Industrial controllers
  • Smart batteries
  • Embedded systems
  • Burn-in applications
 
  • Desktop and notebook computers
  • Automotive
  • Instrumentation
Evaluation/Development Tool Information
Product Status Compliance Short Description Action
ADT7481EBZEVB Active
3-Channel Digital Thermometer and Under/Over Temperature Alarm Evaluation Board
Availability & Samples
Specifications
Case Outlines
Application Diagram
Product
Status
Compliance
Description
Package
MSL
Container
Budgetary Price/Unit
Type
Case Outline
Type
Temperature
Type
Qty.
ADT7481ARMZ Obsolete 
Pb-free
Halide free
ADT7481 Micro10 846B 1 260 Tube 50  
ADT7481ARMZ-001 Obsolete 
Pb-free
Halide free
ADT7481 Micro10 846B 1 260 Tube 50  
ADT7481ARMZ-1R7 Obsolete 
Pb-free
Halide free
ADT7481 Micro10 846B 1 260 Tape and Reel 1000  
ADT7481ARMZ-1RL Last Shipments
Pb-free
Halide free
ADT7481 Micro10 846B 1 260 Tape and Reel 3000  
ADT7481ARMZ-R7 Obsolete 
Pb-free
Halide free
ADT7481 Micro10 846B 1 260 Tape and Reel 1000  
ADT7481ARMZ-REEL Active
Pb-free
Halide free
ADT7481 Micro10 846B 1 260 Tape and Reel 3000 $3.3333
Market Leadtime (weeks) : Contact Factory
Market Leadtime (weeks) : Contact Factory
Market Leadtime (weeks) : Contact Factory
Market Leadtime (weeks) : Contact Factory
Market Leadtime (weeks) : Contact Factory
PandS   (2020-09-14 00:00) : <1K
Market Leadtime (weeks) : 2 to 4
PandS   (2020-09-14 00:00) : >1K
ON Semiconductor   (2020-09-02 00:00) : 36,000

Product
Description
Pricing ($/Unit)
Compliance
Status
Sensor Type
Data Transmission Standard
ICC Max (mA)
VCC Min (V)
VCC Max (V)
T Min (°C)
T Max (°C)
Temperature Error (°C)
Package Type
ADT7481ARMZ-REEL  
 $3.3333 
Pb
H
 Active   
Local & Remote
SMBus
0.35
3
3.6
-40
125
±1
Micro10
Case Outlines
846B   
Packages
ADT7481: Dual Channel Temperature Sensor and Over Temperature Alarm
ADT7481: Dual Channel Temperature Sensor and Over Temperature Alarm
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