EMC1423 / EMC1424 1°C Temperature Sensor with Hardware Thermal Shutdown PRODUCT FEATURES Data Brief General Description Applications The EMC1423 and EMC1424 are high accuracy, low cost, System Management Bus (SMBus) temperature sensors. Advanced features such as Resistance Error Correction (REC), Beta Compensation (to support CPU diodes requiring the BJT/transistor model including 45nm, 65nm and 90nm processors) and automatic diode type detection combine to provide a robust solution for complex environmental monitoring applications. Additionally, the EMC1423 and EMC1424 provide a hardware programmable system shutdown feature that is programmed at part power-up via two pull-up resistor values and that cannot be masked or corrupted through the SMBus. Support for diodes requiring the BJT/transistor model Automatically determines external diode type and optimal settings Resistance Error Correction External Temperature Monitors Each device provides ±1° accuracy for external diode temperatures and ±2°C accuracy for the internal diode temperature. The EMC1423 monitors three temperature channels (two external and one internal). The EMC1424 monitors four temperature channels (three external and one internal). Resistance Error Correction automatically eliminates the temperature error caused by series resistance allowing greater flexibility in routing thermal diodes. Beta Compensation eliminates temperature errors caused by low, variable beta transistors common in today's fine geometry processors. The automatic beta detection feature monitors each external diode/transistor and determines the optimum sensor settings for accurate temperature measurements regardless of processor technology. This frees the user from providing unique sensor configurations for each temperature monitoring application. These advanced features plus ±1°C measurement accuracy provide a low-cost, highly flexible and accurate solution for critical temperature monitoring applications. SMSC EMC1423 / EMC1424 Notebook Computers Desktop Computers Industrial Embedded applications Features Hardware Thermal Shutdown — triggers dedicated SYS_SHDN pin — hardware configured range 77°C to 112°C in 1°C steps — cannot be disabled or modified by software — supports 45nm, 65nm, and 90nm CPU thermal diodes. — — — — ±1°C Accuracy (60°C < TDIODE < 100°C) 0.125°C Resolution Supports up to 2.2nF diode filter capacitor Anti-parallel diodes for extra diode support Internal Temperature Monitor 3.3V Supply Voltage Programmable temperature limits for ALERT Available in Small 10-pin MSOP Lead-free RoHS Compliant Package — ±2°C accuracy PRODUCT PREVIEW Revision 2.0 (08-10-12) 1°C Temperature Sensor with Hardware Thermal Shutdown Order Numbers: EMC1423-1-AIZL-TR for 10 pin, MSOP Lead-Free RoHS Compliant Package EMC1424-1-AIZL-TR for 10 pin, MSOP Lead-Free RoHS Compliant package Reel size is 4,000 pieces This product meets the halogen maximum concentration values per IEC61249-2-21 For RoHS compliance and environmental information, please visit www.smsc.com/rohs Copyright © 2012 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. 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Revision 2.0 (08-10-12) 2 PRODUCT PREVIEW SMSC EMC1423 / EMC1424 1°C Temperature Sensor with Hardware Thermal Shutdown Block Diagram VDD Switching Current SYS_SHDN Limit EMC1423 / EMC1424 Conversion Rate Register DN2 External Temperature Register(s) Internal Temperature Register Low Limit Registers SMBus Interface Anti-parallel diodes ΔΣ ADC Digital Mux Analog Mux DP2 Limit Comparator DN1 Digital Mux DP1 High Limit Registers Internal Temp Diode SMCLK Configuration Register Status Registers SMDATA Interupt Masking ALERT SYS_SHDN GND Pin Diagram VDD 1 10 SMCLK DP1 2 9 SMDATA DN1 3 8 ALERT DP2 / DN3 4 7 SYS_SHDN DN2 / DP3 5 6 GND Figure 0.1 EMC1423/EMC1424 Pin Diagram SMSC EMC1423 / EMC1424 3 PRODUCT PREVIEW Revision 2.0 (08-10-12) D PIN 1 IDENTIFIER AREA (D/2 X E1/2) e E1 4 2 c INITIAL RELEASE DATE RELEASED BY 3/29/05 S.K.ILIEV 4 E SEE DETAIL "A" 10X b END VIEW TOP VIEW A2 A C SEATING PLANE A1 ccc C 3-D VIEW SIDE VIEW H C GAUGE PLANE 0.25 NOTES: 1. ALL DIMENSIONS ARE IN MILLIMETER. 2. TOLERANCE ON THE TRUE POSITION OF EACH LEAD IS ± 0.04 mm AT MAXIMUM MATERIAL CONDITION. 3. PACKAGE BODY DIMENSIONS "D" AND "E1" DO NOT INCLUDE MOLD/INTERLEAD PROTRUSIONS OR FLASH. MAXIMUM MOLD PROTRUSIONS OR FLASH IS 0.15 mm (0.006 INCHES) PER END AND SIDE. DIMENSIONS "D" AND "E1" ARE DETERMINED AT THE OUTERMOST EXTREMES OF THE PLASTIC BODY, INCLUDING ANY MISMATCH BETWEEN TOP AND BOTTOM PLASTIC BODY. THEY ARE DETERMINED AT DATUM PLANE "H". 4. DIMENSIONS "b" AND "c" APPLY TO THE FLAT SECTION OF THE LEAD BETWEEN 0.08 mm AND 0.15 mm FROM THE LEAD TIP. 5. DETAILS OF THE PIN 1 IDENTIFIER ARE OPTIONAL, BUT MUST BE LOCATED WITHIN THE ZONE INDICATED. 4 PRODUCT PREVIEW 3 DESCRIPTION A Revision 2.0 (08-10-12) REVISION HISTORY REVISION 5 3 SEATING PLANE 0° - 8° L (0.95) DETAIL "A" UNLESS OTHERWISE SPECIFIED DIMENSIONS ARE IN MILLIMETERS AND TOLERANCES ARE: DECIMAL ±0.1 X.X X.XX ±0.05 X.XXX ±0.025 THIRD ANGLE PROJECTION 80 ARKAY DRIVE HAUPPAUGE, NY 11788 USA ANGULAR ±1° TITLE NAME DATE S.K.ILIEV 3/29/05 DIM AND TOL PER ASME Y14.5M - 1994 MATERIAL FINISH - PRINT WITH "SCALE TO FIT" DO NOT SCALE DRAWING PACKAGE OUTLINE 10 PIN TSSOP, 3x3 MM BODY, 0.50 MM PITCH DRAWN CHECKED S.K.ILIEV DWG NUMBER S.K.ILIEV STD COMPLIANCE SCALE 3/29/05 Figure 1 10 Pin MSOP / TSSOP Package REV MO-10-TSSOP-3x3 3/29/05 APPROVED 1:1 JEDEC: MO-187 A SHEET 1 OF 1 SMSC EMC1423 / EMC1424 1°C Temperature Sensor with Hardware Thermal Shutdown Package Outline