EMC1043 1°C Triple Temperature Sensor with Beta Compensation and Hotter of Two Zones PRODUCT FEATURES Data Brief General Description Features The EMC1043 is a family of System Management Bus (SMBus) temperature sensors that monitors three temperature zones, one internal diode and two externally connected diodes, for PC and embedded environments. The EMC1043 includes beta compensation circuitry to correct for variation in the beta of measurement transistors. Other extended features include resistance error correction and ideality factor configuration to eliminate major sources of temperature measurement error.1 An added feature to the EMC1043 is a function that automatically compares the two external temperature zones and reports the hotter of the two temperatures. Selectable conversion rates and standby mode support low-power operation. The temperature measurement ranges support two data ranges (and formats), -64°C to +127°C and -64°C to +191°C. ±1°C Accuracy (40°C to 80°C) 0.125°C Resolution Ideality Factor Configuration Accepts 2200pF Cap Across External Diodes for Noise Suppression — Optional Resistive Error Correction on External Diode 2 — Resistance Error Correction (up to 100 Ohms) — Beta Compensation — — — — Internal Temperature Diode — ±3°C Accuracy (0°C to 85°C) — 0.125°C Resolution Low Power Operation 3.0V to 3.6V Supply Programmable Conversion Rate SMBus 2.0 Compliant Reports Hotter of Two Diodes with Dual-core CPU — 4uA Standby Current — Four SMBus Address Available Applications Supports two External Temperature Diodes Desktop and Notebook Computers Hardware Management Servers Embedded Applications 1.Patents pending Simplified Block Diagram Switching Current Configuration Register Analog Mux and Anti-Alias Filter DN1 DP2 DN2 Local Temp Diode 11-bit delta-sigma ADC External Diode 2 Register Digital Mux and Byte Interlock Internal Diode Register SMCLK Status Register SMSC EMC1043 PRODUCT PREVIEW SMBus Interface External Diode 1 Register DP1 SMDATA Revision 1.44 (04-14-08) 1°C Triple Temperature Sensor with Beta Compensation and Hotter of Two Zones ORDER NUMBERS: ORDERING NUMBER PACKAGE FEATURES SMBUS ADDRESS EMC1043-1-ACZL-TR 1001_100x EMC1043-2-ACZL-TR EMC1043-3-ACZL-TR EMC1043-4-ACZL-TR 8 pin MSOP Lead-Free RoHS Compliant package Two external diodes with REC and Beta Compensation and Hottest Of Comparision 1001_000x 1001_001x Two external diodes with REC. Beta Compensation on External Diode 1 only. Hottest of Comparision EMC1043-5-ACZL-TR 1001_101x 1001_100x Reel size is 4,000 pieces. Evaluation Boards available upon request. (EVB-EMC1043, EVB-EMC1043C) 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. 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Revision 1.44 (04-14-08) 2 PRODUCT PREVIEW SMSC EMC1043 1°C Triple Temperature Sensor with Beta Compensation and Hotter of Two Zones Package Outline Figure 1 8-Pin MSOP Package Outline - 3x3mm Body 0.65mm Pitch Table 1 8-Pin MSOP Package Parameters MIN NOMINAL MAX REMARKS A 0.80 ~ 1.10 Overall Package Height A1 0.05 ~ 0.15 Standoff A2 0.75 0.85 0.95 Body Thickness D 2.80 3.00 3.20 X Body Size E 4.65 4.90 5.15 Y Span E1 2.80 ~ 3.20 Y body Size H 0.08 ~ 0.23 Lead Foot Thickness L 0.40 ~ 0.80 Lead Foot Length L1 0.95 REF e Lead Length 0.65 BSC Lead Pitch θ 0o ~ 8o Lead Foot Angle W 0.22 ~ 0.38 Lead Width ccc ~ ~ 0.10 Coplanarity Notes: 1. Controlling Unit: millimeters. 2. Tolerance on the true position of the leads is ± 0.065 mm maximum. 3. Package body dimensions D and E1 do not include mold protrusion or flash. Dimensions D and E1 to be determined at datum plane H. Maximum mold protrusion or flash is 0.15mm (0.006 inches) per end, and 0.15mm (0.006 inches) per side. 4. Dimension for foot length L measured at the gauge plane 0.25 mm above the seating plane. 5. Details of pin 1 identifier are optional but must be located within the zone indicated. SMSC EMC1043 3 PRODUCT PREVIEW Revision 1.44 (04-14-08)