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PDF EMC1414 Data sheet ( Hoja de datos )
| Número de pieza | EMC1414 | |
| Descripción | Multiple Channel Temperature Sensor | |
| Fabricantes | Microchip | |
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EMC1413/EMC1414
Multiple Channel 1°C Temperature Sensors with
Beta Compensation
PRODUCT FEATURES
Data Sheet
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) 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
including advanced processor geometries
Automatically determines external diode type and
optimal settings
Resistance Error Correction
Up to 3 External Temperature Monitors
— ±1°C max accuracy (20°C < TDIODE < 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 RoHS compliant packages
— 10-pin 3mm x 3mm DFN
— 10-pin MSOP
2014 Microchip Technology Inc.
DS20005274A-page 1
1 page  
Multiple Channel 1°C Temperature Sensors with Beta Compensation
Data Sheet
List of Figures
Figure 1.1
Figure 3.1
Figure 3.2
Figure 5.1
Figure 5.2
Figure 6.1
Figure 6.2
Figure 6.3
Figure 6.4
Figure 6.5
Figure 9.1
Figure 9.2
Figure 9.3
Figure 9.4
Figure 9.5
Figure 9.6
Figure 9.7
Figure 9.8
EMC1413/EMC1414 Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
EMC1413 / 1414 Pin Diagram, MSOP-10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
EMC1413 / EMC1414 Pin Diagram, DFN-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
SMBus Timing Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Isolating THERM Pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
System Diagram for EMC1414 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
System Diagram for EMC1413 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Temperature Filter Step Response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Temperature Filter Impulse Response. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Diode Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
10-Pin MSOP / TSSOP Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
10-Pin DFN Package Drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
10-Pin DFN Package Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
10 Pin DFN PCB Footprint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
EMC1414-A 10-Pin DFN Package Markings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
EMC1414 10-Pin MSOP Package Markings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
EMC1413-A 10-Pin DFN Package Markings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
EMC1413 10-Pin MSOP Package Markings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
2014 Microchip Technology Inc.
DS20005274A-page 5
5 Page 
Multiple Channel 1°C Temperature Sensors with Beta Compensation
Data Sheet
4.2 Electrical Specifications
Table 4.2 Electrical Specifications
VDD = 3.0V to 3.6V, TA = -40°C to 125°C, all typical values at TA = 27°C unless otherwise noted.
CHARACTERISTIC SYMBOL MIN TYP MAX UNITS
CONDITIONS
DC Power
Supply Voltage
Supply Current
VDD
3.0 3.3
3.6
V
IDD
430 850
μA
1 conversion / sec, dynamic
averaging disabled
930 1200 μA
4 conversions / sec, dynamic
averaging enabled
1120
μA > 16 conversions / sec, dynamic
averaging enabled
Standby Supply Current IDD
170 230
μA
Device in Standby mode, no SMBus
communications, ALERT and
THERM pins not asserted.
Temperature Accuracy
Temperature Resolution
Internal Temperature Monitor
±0.25 ±1
°C
±2 °C
0.125
°C
-5°C < TA < 100°C
-40°C < TA < 125°C
Temperature Accuracy
Temperature Resolution
External Temperature Monitor
±0.25 ±1
°C
±0.5
0.125
±2
°C
°C
+20°C
0°C <
T<AT<DI1O0D0E°C<
+110°C
-40°C < TDIODE < 127°C
Conversion Time all
Channels
tCONV
150
ms default settings
Capacitive Filter
CFILTER
2.2 2.7
nF
ALERT and THERM pins
Connected across external diode
Output Low Voltage
Leakage Current
VOL
ILEAK
0.4
V ISINK = 8mA
±5 μA ALERT and THERM pins
Device powered or unpowered
TpAull<-u8p5v°oCltage < 3.6V
2014 Microchip Technology Inc.
DS20005274A-page 11
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet EMC1414.PDF ] | |
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