Add to Signal Chain Designer

ADT7470:  Temperature Sensor Hub and Fan Controller

Product Details


The ADT7470 controller is a multichannel temperature sensor and PWM fan controller and fan speed monitor for noise sensitive systems requiring active system cooling. It is designed to interface directly to an I2C bus and control/monitor the fans using a service processor. The aim is to quickly develop systems that are modular and can easily be expanded depending on the system’s cooling requirements. The device can monitor up to ten temperature sensors. It can also monitor and control the speed of four fans so that they operate at the lowest possible speed for minimum acoustic noise. A FULL_SPEED input is provided to allow the fans to be “blasted” to 100% via external hardware control, under extreme thermal conditions or on system startup. An SMBALERTinterrupt communicates error conditions such as fan underspeed, fan failure to the system service processor. Individual error conditions can then be read from status registers over the I2C bus. In the event of a fan failure condition, any or all PWM outputs can be programmed to automatically adjust to 100% to provide failsafe cooling.

FEATURES and BENEFITS

  • Monitors up to 10 Remote Temperature Sensors
  • Monitors and Controls Speed of up to 4 Fans Independently
  • PWM Outputs Drive each Fan under Software Control
  • FULL_SPEED Input Allows Fans to be Blasted 100% by External Hardware
  • SMBALERT Interrupt Signals Failures to System Controller
  • Tristate ADDR Pin Allows up to 3 Devices on a Single Bus
  • Temperature Decoder Interprets TMP05/TMP06 Temperature Sensors and Communicates Values over I2C Bus
  • Limit Comparison of All Monitored Values

Functional Block Diagram for ADT7470

Documentation

Title Content Type File Type
ADT7470: Temperature Sensor Hub and Fan Controller Data Sheet (Rev E, 04/2013) (pdf, 1298 kB) Data Sheets PDF
EVAL-ADT7470EB: ADT7470 Evaluation Board  (pdf, 739 kB) User Guides PDF
Celsius-to-digital thermometer works with remote sensor
By Elana Lian and Chau Tran, Analog Devices, Inc. (EDN, 4/15/2004)
Technical Articles HTML
Selection Guide: Temperature Sensors  (pdf, 807 kB) Overview PDF
Voltage Monitoring and Sequencing (2009/2010)  (pdf) Overview PDF
RAQs index Rarely Asked Questions HTML
Glossary of EE Terms Glossary HTML

Evaluation Kits & Symbols & Footprints

Evaluation Boards & KitsView the Evaluation Boards and Kits page for documentation and purchasing

Symbols and Footprints— Analog Devices offers Symbols & Footprints which are compatible with a large set of today’s CAD systems for broader and easier support.

SampleSample & Buy

Price, packaging, availability

ADT7470 Model Options
Model Package Pins Temp.
Range
Packing,
Qty
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
ADT7470ARQZ Status: Production 16 ld QSOP 16 Ind Tube, 98 $2.51 $2.18 Y  Material Info PCN Purchase
ADT7470ARQZ-REEL Status: Production 16 ld QSOP 16 Ind Reel, 2500 - $2.18 Y  Material Info PCN Purchase
ADT7470ARQZ-REEL7 Status: Production 16 ld QSOP 16 Ind Reel, 1000 - $2.18 Y  Material Info PCN Purchase
Price Table Help

The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.

ADT7470 Evaluation Board
Model Description Price RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
EVAL-ADT7470EBZ Status: Production Evaluation Board $99.00 Yes -

Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.

Check Inventory & Purchase

View Sales and Distribution Offices

沪ICP备09046653号
content here.
content here.

Review this Product

Close