EMC1413 Datasheet, PDF (1/52 Pages) SMSC Corporation – Multiple Channel 1 Temperature Sensors with Beta Compensation

EMC1413 / EMC1414
Multiple Channel 1°C
Temperature Sensors with
Beta Compensation
PRODUCT FEATURES
Datasheet
General Description
The EMC1413 / EMC1414 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.
The EMC1413 monitors three temperature channels and
the EMC1414 monitors four temperature channels. It
provides ±1°C accuracy for both external and internal
diode temperatures.
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.
Applications
„ Notebook Computers
„ Desktop Computers
„ Industrial
„ Embedded applications
Features
„ Programmable SMBus address
„ Support for diodes requiring the BJT/transistor model
— supports 45nm, 65nm, and 90nm CPU thermal diodes
„ Automatically determines external diode type and
optimal settings
„ Resistance Error Correction
„ Up to 3 External Temperature Monitors
— ±1°C max accuracy (20°C < T_DIODE < 110°C)
— 0.125°C resolution
— Supports up to 2.2nF diode filter capacitor
— Anti-parallel diodes for extra diode support (EMC1414
only)
„ Internal Temperature Monitor
— ±1°C accuracy
— 0.125°C resolution
„ 3.3V Supply Voltage
„ Programmable temperature limits for ALERT
„ Available in these lead-free RoHS compliant
packages
— 10-pin 3mm x 3mm DFN
— 10-pin MSOP
SMSC EMC1413 / EMC1414
DATASHEET
Revision 1.41 (02-23-12)