EMC1043
1°C Triple Temperature Sensor with Beta Compensation and Hotter of Two Zones
General Description
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 error1.
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 data ranges (and formats), -64°C to +127°C and -64°C to +191°C.
1. Patents pending.
Applications
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Desktop and Notebook Computers |
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Hardware Management |
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Servers |
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Embedded Applications |
Features
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Supports two External Temperature Diodes
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±1.0°C Accuracy (40°C to 80°C) |
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0.125°C Resolution |
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Ideality Factor Configuration |
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Accepts 2200pF Cap Across External Diodes for Noise Suppression |
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Optional Resistive Error Correction on External Diode 2 |
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Resistance Error Correction (up to 100 Ohms) |
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Beta Compensation |
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Internal Temperature Diode
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±3°C Accuracy (0°C to 85°C) |
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0.125°C Resolution |
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Low Power Operation
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4uA Standby Current |
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3.0V to 3.6V Supply |
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Programmable Conversion Rate |
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SMBus 2.0 Compliant
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Four SMBus Address Available |
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Reports Hotter of Two Diodes with Dual-core CPU |
ORDERING INFORMATION
| Ordering Number | Package | Features | SMBus Address |
| EMC1043-1-ACZL-TR | 8 pin MSOP Lead-Free RoHS Compliant package | Two external diodes with REC and Beta Compensation and Hottest Of Comparision | 1001_100x |
| EMC1043-2-ACZL-TR | 1001_101x |
| EMC1043-3-ACZL-TR | 1001_000x |
| EMC1043-4-ACZL-TR | 1001_001x |
| EMC1043-5-ACZL-TR | Two external diodes with REC. Beta Compensation on External Diode 1 only. Hottest of Comparision | 1001_100x |
Reel size is 4,000 pieces
Evaluation Board available upon request (EVB-EMC1043, EVB-EMC1043C)
 EMC1043 Data Sheet, Application Notes,
Drivers and Design Tools
| Description |
File Name |
File Size |
Date |
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| EMC1043 Data Brief |
1043db.pdf |
88K |
4/14/08 |
| EMC1043 Data Sheet |
1043.pdf |
411K |
4/14/08 |
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| Evaluation Board |
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EVB-EMC1043
Schematic, PDF
Bill of Materials, PDF
User Manual, PDF
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evb10x3sch.pdf
evb10x3bom.pdf
evb10x3user.pdf
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113K
88K
325K
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12/19/05
12/19/05
12/14/06
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EVB-EMC1043C
Schematic, PDF
Bill of Materials, PDF
User Manual, PDF |
evb10x3sch.pdf
evb10x3cbom.pdf
evb10x3cuser.pdf
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113K
39K
354K |
12/19/05
7/14/06
12/14/06 |
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| Application Notes |
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| Application Note 10-14: Using Temperature Sensing Diodes with EMC Devices - Remote Sensors |
an1014.pdf |
162K |
7/18/06 |
| Application Note 12-14: Remote Thermal Sensing Diode Selection Guide |
an1214.pdf |
216K |
9/9/05 |
| Application Note 13-19: Resistance Error Correction |
an1319.pdf |
210K |
11/11/05 |
| Application Note 14-0: SMBus Temperature Sensors from SMSC in an I2C System |
an140.pdf |
119K |
12/12/05 |
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| Other Information |
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| Using the Adobe® Acrobat® Reader |
aacrobat.html |
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