RPM-Based Fan Controller with HW Thermal Shutdown

Features

  • Designed to support 45nm, 65nm, and 90nm CPU Diodes
  • Supports BJT and transistor models for diode channels
  • Closed-Loop RPM Based Fan Controller
    • Accepts External Clock Source To Achieve 2% Accuracy
  • Integrated Linear Fan Driver
    • 600mA Drive Capability
  • HW Thermal Shutdown (SYS_SHDN#)
    • 1°C Incremental Set Points For Thermal Shutdown
    • Cannot be disabled by software
  • Provides Reset Function (RESET#) On 5V Supply
  • Three Remote Thermal Zones
    • ±1°C Accuracy (60°C to 100°C)
    • 1°C Resolution
  • Resistance Error Correction On Thermal 'Diode' Channels
    • Eliminates Temperature Offset Due To Series Resistance From PCB Traces And Thermal 'Diode'
  • Thermally Enhanced, 28-pin, 5x5 QFN Lead-free RoHS Compliant Package
  • Operates From Single 3.0 - 3.6V Supply
    • 5V Supply For Linear Fan Driver
  • Software Configurable ALERT# Signal For Diode Fault, Fan Stall Or System Warning

Applications

  • Notebook Computers
  • Desktop Computers
  • Embedded Applications

EMC2102 Block Diagram

Although the information in this document has been checked and is believed to be accurate, no responsibility is assumed for inaccuracies. SMSC reserves the right to make changes to product descriptions and specifications at any time without notice. Contact your local SMSC sales office to obtain the latest specifications before placing your product order. The provision of this information does not convey any licenses under any patent rights or other intellectual property rights of SMSC or others. All sales are expressly conditional on your agreement to the terms and conditions of the most recently dated version of SMSC's standard Terms of Sale Agreement dated before the date of your order. Products may contain design defects or errors known as anomalies which may cause a product's functions to deviate from published specifications. Anomaly sheets are available upon request. SMSC products are not designed, intended, authorized or warranted for use in any life support or other application where product failure could cause or contribute to personal injury or severe property damage. Any and all such uses without prior written approval of an Officer of SMSC and further testing and/or modification will be fully at the risk of the customer. Copies of this document or other SMSC literature, as well as the Terms of Sale Agreement, may be obtained by visiting SMSC's website at http://www.smsc.com. SMSC and the SMSC logo are registered trademarks of Standard Microsystems Corporation ("SMSC"). Other names mentioned may be trademarks of their respective holders. All claims made herein speak as of the date of this material. The company does not undertake to update such statements.

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