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SMSC - Triple Temperature Sensor

Numéro de référence EMC1053
Description Triple Temperature Sensor
Fabricant SMSC 
Logo SMSC 





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EMC1053 fiche technique
EMC1053
1°C Triple Temperature
Sensor with Resistance
Error Correction &
Hotter of Two Zones
PRODUCT FEATURES
Datasheet
General Description
The EMC1053 is a System Management Bus (SMBus)
temperature sensor that monitors three temperature
zones, one internal diode and two externally connected
diodes, for PC and embedded environments. The
EMC1053 includes resistance error correction and
ideality factor configuration to eliminate major sources of
temperature measurement error.1
An added feature to the EMC1053 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.
Applications
„ Desktop and Notebook Computers
„ Hardware Management
„ Servers
„ Embedded Applications
Features
„ Supports two External Temperature Diodes
±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)
— Selectable Beta Compensation for Substrate Diodes
„ Internal Temperature Diode
±3°C Accuracy (0°C to 85°C)
— 0.125°C Resolution
„ Low Power Operation
— 4uA Standby Current
„ 3.0V to 3.6V Supply
„ Programmable Conversion Rate
„ SMBus 2.0 Compliant
„ Reports Hotter of Two Diodes with Dual-core CPU
1.Patents pending.
Simplified Block Diagram
DP1
DN1
Switching
Current
DP2
DN2
Local Temp
Diode
SMSC EMC1053
11-bit
delta-sigma
ADC
External Diode
1 Register
External Diode
2 Register
Internal Diode
Register
Configuration
Register
Digital Mux
and
Byte Interlock
Status Register
DATASHEET
SMCLK
SMDATA
Revision 1.44 (04-14-08)

PagesPages 28
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