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EMC1428 Dataheets PDF



Part Number EMC1428
Manufacturers SMSC Corporation
Logo SMSC Corporation
Description Multiple Temperature Sensor
Datasheet EMC1428 DatasheetEMC1428 Datasheet (PDF)

EMC1428 1°C Multiple Temperature Sensor with HW Thermal Shutdown & Hottest of Thermal Zones PRODUCT FEATURES Datasheet General Description The EMC1428 is a high accuracy, low cost, System Management Bus (SMBus) temperature sensor. Advanced features such as Resistance Error Correction (REC), Beta Compensation (to CPU diodes requiring the BJT or transistor model) and automatic diode type detection combine to provide a robust solution for complex environmental monitoring applications. Additiona.

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EMC1428 1°C Multiple Temperature Sensor with HW Thermal Shutdown & Hottest of Thermal Zones PRODUCT FEATURES Datasheet General Description The EMC1428 is a high accuracy, low cost, System Management Bus (SMBus) temperature sensor. Advanced features such as Resistance Error Correction (REC), Beta Compensation (to CPU diodes requiring the BJT or transistor model) and automatic diode type detection combine to provide a robust solution for complex environmental monitoring applications. Additionally, the EMC1428 provides a hardware programmable system shutdown feature that is programmed at part power-up via a single TRIP_SET voltage channel that cannot be masked or corrupted through the SMBus. Each device provides ±1° accuracy for external diode temperatures and ±2°C accuracy for the internal diode temperature. The EMC1428 monitors up to eight temperature channels (up to seven external and one internal). Applications „ Notebook Computers „ Desktop Computers „ Industrial „ Embedded Applications Features „ Hardware Thermal Shutdown — triggers dedicated SYS_SHDN pin — hardware configured range 65°C to 127°C in 1°C steps — cannot be disabled or modified by software „ Designed to support 45nm, 65nm, and 90nm CPU diodes „ Supports diodes requiring the BJT or transistor model „ Resistance Error Correction (up to 100 Ohms) „ Up to seven External Temperature Monitors — ±1°C Accuracy (60°C < TDIODE < 100°C) — 0.125°C Resolution — Supports up to 2.2nF filter capacitor — Anti-parallel diodes for extra diode support and compact design „ Internal Temperature Monitor — ±2°C accuracy „ 3.3V Supply Voltage „ Available in a 16 pin 4mm x 4mm QFN lead-free RoHS Compliant package „ Programmable temperature limits for ALERT Block Diagram TRIP_SET SYS_SHDN DP1 DN1 DP2 / DN3 DN2 / DP3 DP4 / DN5 DN4 / DP5 DP6 / DN7 DN6 / DP7 External Temp Diode Inputs Antiparallel diode Analog Mux Internal Temp Diode Critical / Thermal Shutdown Logic 11 bit Σ Δ ADC Voltage to Temp conversion Voltage Register Temp Registers Hottest of Comparison SMBus Slave Protocol SMCLK SMDATA ALERT SMSC EMC1428 DATASHEET Revision 0.62 (03-05-08) 1°C Multiple Temperature Sensor with HW Thermal Shutdown & Hottest of Thermal Zones Datasheet ORDER NUMBERS: ORDERING NUMBER PACKAGE FEATURES EMC1428-1-AP EMC1428-6-AP 16 pin QFN (Lead-Free RoHS Compliant) Up to 7 external diodes. “Hottest Of” temperature comparison. Hardware set Critical / Thermal shutdown, ALERT output 16 pin QFN (Lead-Free RoHS Compliant) Up to 7 external diodes. “Hottest Of” temperature comparison. Hardware set Critical / Thermal shutdown, ALERT output DIODE MODES SMBUS SUPPORTED ADDRESS Intel CPU and 3904 1001_100(r/w) Intel CPU and 3904 1001_101(r/w) 80 ARKAY DRIVE, HAUPPAUGE, NY 11788 (631) 435-6000, FAX (631) 273-3123 Copyright © 2008 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 COUR.


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