EMC1046/EMC1047
1°C Multiple Temperature Sensor with Beta Compensation and Hottest of Thermal Zones Supporting Up to Seven Temperatures
General Description
The EMC1046/EMC1047 are high accuracy, low cost, System Management Bus (SMBus) temperature sensors. 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.
Each device provides ±1° accuracy for external diode temperatures and ±2°C accuracy for the internal diode temperature. The EMC1046/EMC1047 monitors up to seven temperature channels (up to six external and one internal).
Features
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Designed to support 45nm, 65nm, and 90nm CPU diodes |
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Supports diodes requiring the BJT or transistor model |
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Resistance Error Correction (up to 100 Ohms) |
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Up to six External Temperature Monitors
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±1°C Accuracy (60°C < TDIODE < 100°C) |
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0.125°C Resolution |
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Supports up to 2.2nF filter capacitor |
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Anti-parallel diodes for extra diode support and compact design |
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Internal Temperature Monitor
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±2°C accuracy |
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3.3V Supply Voltage |
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Available in 10 pin TSSOP lead-free RoHS Compliant package |
Applications
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Notebook Computers |
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Desktop Computers |
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Industrial |
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Embedded applications |
EMC1046/EMC1047 Block Diagram
ORDERING INFORMATION
| Ordering Number | Package | Features | Diode Modes
Supported | SMBus Address |
| EMC1046-1-AIZL | 10 pin TSSOP (Lead-Free ROHS Compliant) | Up to 5 external diodes. "Hottest Of" temperature comparison | Intel CPU, 3904, AMD with setup | 1001_100(r/w) |
| EMC1046-6-AIZL | 10 pin TSSOP (Lead-Free ROHS Compliant) | Up to 5 external diodes. "Hottest Of" temperature comparison | Intel CPU, 3904, AMD with setup | 1001_101(r/w) |
| EMC1047-1-AIZL | 10 pin TSSOP (Lead-Free ROHS Compliant) | Up to 6 external diodes. "Hottest Of" temperature comparison | Intel CPU, 3904, AMD with setup | 1001_100(r/w) |
 EMC1046/EMC1047 Data Sheet, Application Notes,
Drivers and Design Tools
| Description |
File Name |
File Size |
Date |
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| EMC1046/EMC1047 Data Brief |
1046_1047db.pdf |
234K |
3/5/08 |
| EMC1046/EMC1047 Data Sheet |
1046_1047.pdf |
535K |
3/5/08 |
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| Evaluation Board |
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EVB-EMC1046/1047
Schematic, PDF
Bill of Materials, PDF
Users Guide, PDF
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evb1046_1047sch.pdf
evb1046_1047bom.pdf
evb1046_1047user.pdf
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150K
77K
589K |
7/16/07
7/18/07
8/21/07 |
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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 |
| Application Note 16-4: Using Anti-Parallel Diode (APD) with SMSC Temperature Sensors |
an164.pdf |
185K |
4/26/07 |
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| White Paper |
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| White Paper 1-7: Portable Design Beyond ON/OFF Fan Control |
wp17.pdf |
175K |
8/11/05 |
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| Other Information |
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| Using the Adobe® Acrobat® Reader |
aacrobat.html |
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