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EMC2102 Dataheets PDF



Part Number EMC2102
Manufacturers SMSC Corporation
Logo SMSC Corporation
Description RPM-Based Fan Controller
Datasheet EMC2102 DatasheetEMC2102 Datasheet (PDF)

EMC2102 RPM-Based Fan Controller with HW Thermal Shutdown PRODUCT FEATURES GENERAL DESCRIPTION The EMC2102 is an SMBus, closed-loop, RPM-based fan controller/driver with hardware (HW) thermal shutdown and reset controller. The EMC2102 is packaged in a thermally enhanced, compact, 5x5, 28pin lead-free RoHS compliant QFN package. The EMC2102 utilizes Beta Compensation and Resistance Error Correction (REC) to accurately monitor three external temperature zones. These features allow great accuracy .

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EMC2102 RPM-Based Fan Controller with HW Thermal Shutdown PRODUCT FEATURES GENERAL DESCRIPTION The EMC2102 is an SMBus, closed-loop, RPM-based fan controller/driver with hardware (HW) thermal shutdown and reset controller. The EMC2102 is packaged in a thermally enhanced, compact, 5x5, 28pin lead-free RoHS compliant QFN package. The EMC2102 utilizes Beta Compensation and Resistance Error Correction (REC) to accurately monitor three external temperature zones. These features allow great accuracy for CPU substrate thermal diodes on multiple process geometries as well as with discrete diode-connected transistors. Both Beta Compensation and REC can be disabled on the EMC2102 to maintain accuracy when monitoring AMD thermal diodes. The EMC2102 includes a closed-loop RPM based Fan Control Algorithm that integrates a linear fan driver capable of sourcing 600mA of current. The fan control algorithm is designed to work with fans that operate up to 16,000 RPMs. The EMC2102 provides a stand-alone HW thermal shutdown block. The HW thermal shutdown logic can be configured for a few common configurations based on the strapping level of the SHDN_SEL pin on the PCB. The HW thermal shutdown point can be set in 1°C increments by using a discrete resistor divider implemented on the TRIP_SET pin. The EMC2102 also provides 5V supply ‘power good’ function with a threshold of 4.5V. This function is provided on the RESET# pin. „ Datasheet FEATURES Beta Compensation Allows Accurate Temperature Measurement on 65nm CPU/GPUs 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 www.DataSheet4U.com „ „ 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 „ „ „ SMSC EMC2102 DATASHEET Revision 1.95 (10-19-06) RPM-Based Fan Controller with HW Thermal Shutdown Datasheet ORDER NUMBER: EMC2102-DZK FOR 28-PIN QFN LEAD-FREE ROHS COMPLIANT PACKAGE (ADDRESS - 011_1101) 80 ARKAY DRIVE, HAUPPAUGE, NY 11788 (631) 435-6000, FAX (631) 273-3123 Copyright © 2006 SMSC or its subsidiaries. All rights reserved. Circuit diagrams and other information relating to SMSC products are included as a means of illustrating typical applications. Consequently, complete information sufficient for construction purposes is not necessarily given. Although the information has been checked and is believed to be accurate, no responsibility is assumed for inaccuracies. SMSC reserves the right to make changes to specifications and product descriptions 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 to the purchaser of the described semiconductor devices 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 (the "Terms of Sale Agreement"). The product may contain design defects or errors known as anomalies which may cause the 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 is a registered trademark of Standard Microsystems Corporation (“SMSC”). Product names and company names are the trademarks of their respective holders. SMSC DISCLAIMS AND EXCLUDES ANY AND ALL WARRANTIES, INCLUDING WITHOUT LIMITATION ANY AND ALL IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE, AND AGAINST INFRINGEMENT AND THE LIKE, AND ANY AND ALL WARRANTIES ARISING FROM ANY COURSE OF DEALING OR USAGE OF TRADE. IN NO EVENT SHALL SMSC BE LIABLE FOR ANY DIRECT, INCIDENTAL, INDIRECT, SPECIAL, PUN.


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