EMC1423/EMC1424 1??C Temperature Sensor with Hardware Thermal Shutdown Data Bri

EMC1423 / EMC1424
1°C Temperature Sensor with
Hardware Thermal Shutdown
PRODUCT FEATURES
Data Brief
General Description
Applications
The EMC1423 and EMC1424 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.
„
Additionally, the EMC1423 and EMC1424 provide a
hardware programmable system shutdown feature that
is programmed at part power-up via two pull-up resistor
values and that cannot be masked or corrupted through
the SMBus.
„
Support for diodes requiring the BJT/transistor model
„
Automatically determines external diode type and
optimal settings
Resistance Error Correction
External Temperature Monitors
Each device provides ±1° accuracy for external diode
temperatures and ±2°C accuracy for the internal diode
temperature. The EMC1423 monitors three temperature
channels (two external and one internal). The EMC1424
monitors four temperature channels (three external and
one internal).
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.
SMSC EMC1423 / EMC1424
„
„
„
Notebook Computers
Desktop Computers
Industrial
Embedded applications
Features
„
Hardware Thermal Shutdown
— triggers dedicated SYS_SHDN pin
— hardware configured range 77°C to 112°C in 1°C steps
— cannot be disabled or modified by software
— supports 45nm, 65nm, and 90nm CPU thermal diodes.
„
„
—
—
—
—
±1°C Accuracy (60°C < TDIODE < 100°C)
0.125°C Resolution
Supports up to 2.2nF diode filter capacitor
Anti-parallel diodes for extra diode support
„
Internal Temperature Monitor
„
3.3V Supply Voltage
Programmable temperature limits for ALERT
Available in Small 10-pin MSOP Lead-free RoHS
Compliant Package
— ±2°C accuracy
„
„
PRODUCT PREVIEW
Revision 2.0 (08-10-12)
1°C Temperature Sensor with Hardware Thermal Shutdown
Order Numbers:
EMC1423-1-AIZL-TR for 10 pin, MSOP Lead-Free RoHS Compliant Package
EMC1424-1-AIZL-TR for 10 pin, MSOP Lead-Free RoHS Compliant package
Reel size is 4,000 pieces
This product meets the halogen maximum concentration values per IEC61249-2-21
For RoHS compliance and environmental information, please visit www.smsc.com/rohs
Copyright © 2012 SMSC or its subsidiaries. All rights reserved.
Circuit diagrams and other information relating to SMSC products are included as a means of illustrating typical applications. Consequently, complete information sufficient for
construction purposes is not necessarily given. Although the information has been checked and is believed to be accurate, no responsibility is assumed for inaccuracies. SMSC
reserves the right to make changes to specifications and product descriptions at any time without notice. Contact your local SMSC sales office to obtain the latest specifications
before placing your product order. The provision of this information does not convey to the purchaser of the described semiconductor devices any licenses under any patent
rights or other intellectual property rights of SMSC or others. All sales are expressly conditional on your agreement to the terms and conditions of the most recently dated
version of SMSC's standard Terms of Sale Agreement dated before the date of your order (the "Terms of Sale Agreement"). The product may contain design defects or errors
known as anomalies which may cause the product's functions to deviate from published specifications. Anomaly sheets are available upon request. SMSC products are not
designed, intended, authorized or warranted for use in any life support or other application where product failure could cause or contribute to personal injury or severe property
damage. Any and all such uses without prior written approval of an Officer of SMSC and further testing and/or modification will be fully at the risk of the customer. Copies of
this document or other SMSC literature, as well as the Terms of Sale Agreement, may be obtained by visiting SMSC’s website at http://www.smsc.com. SMSC is a registered
trademark of Standard Microsystems Corporation (“SMSC”). Product names and company names are the trademarks of their respective holders.
SMSC DISCLAIMS AND EXCLUDES ANY AND ALL WARRANTIES, INCLUDING WITHOUT LIMITATION ANY AND ALL IMPLIED WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE, TITLE, AND AGAINST INFRINGEMENT AND THE LIKE, AND ANY AND ALL WARRANTIES ARISING FROM ANY COURSE
OF DEALING OR USAGE OF TRADE. IN NO EVENT SHALL SMSC BE LIABLE FOR ANY DIRECT, INCIDENTAL, INDIRECT, SPECIAL, PUNITIVE, OR CONSEQUENTIAL
DAMAGES; OR FOR LOST DATA, PROFITS, SAVINGS OR REVENUES OF ANY KIND; REGARDLESS OF THE FORM OF ACTION, WHETHER BASED ON CONTRACT;
TORT; NEGLIGENCE OF SMSC OR OTHERS; STRICT LIABILITY; BREACH OF WARRANTY; OR OTHERWISE; WHETHER OR NOT ANY REMEDY OF BUYER IS HELD
TO HAVE FAILED OF ITS ESSENTIAL PURPOSE, AND WHETHER OR NOT SMSC HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
Revision 2.0 (08-10-12)
2
PRODUCT PREVIEW
SMSC EMC1423 / EMC1424
1°C Temperature Sensor with Hardware Thermal Shutdown
Block Diagram
VDD
Switching
Current
SYS_SHDN Limit
EMC1423 / EMC1424
Conversion Rate Register
DN2
External
Temperature
Register(s)
Internal
Temperature
Register
Low Limit Registers
SMBus Interface
Anti-parallel
diodes
ΔΣ ADC
Digital Mux
Analog
Mux
DP2
Limit Comparator
DN1
Digital Mux
DP1
High Limit Registers
Internal
Temp Diode
SMCLK
Configuration Register
Status Registers
SMDATA
Interupt Masking
ALERT
SYS_SHDN
GND
Pin Diagram
VDD 1
10 SMCLK
DP1 2
9
SMDATA
DN1 3
8
ALERT
DP2 / DN3 4
7
SYS_SHDN
DN2 / DP3 5
6
GND
Figure 0.1 EMC1423/EMC1424 Pin Diagram
SMSC EMC1423 / EMC1424
3
PRODUCT PREVIEW
Revision 2.0 (08-10-12)
D
PIN 1 IDENTIFIER
AREA (D/2 X E1/2)
e
E1
4
2
c
INITIAL RELEASE
DATE
RELEASED BY
3/29/05
S.K.ILIEV
4
E
SEE DETAIL "A"
10X b
END VIEW
TOP VIEW
A2
A
C
SEATING PLANE
A1
ccc C
3-D VIEW
SIDE VIEW
H
C
GAUGE PLANE
0.25
NOTES:
1. ALL DIMENSIONS ARE IN MILLIMETER.
2. TOLERANCE ON THE TRUE POSITION OF EACH LEAD IS ± 0.04 mm AT MAXIMUM MATERIAL
CONDITION.
3. PACKAGE BODY DIMENSIONS "D" AND "E1" DO NOT INCLUDE MOLD/INTERLEAD PROTRUSIONS
OR FLASH. MAXIMUM MOLD PROTRUSIONS OR FLASH IS 0.15 mm (0.006 INCHES) PER END AND
SIDE. DIMENSIONS "D" AND "E1" ARE DETERMINED AT THE OUTERMOST EXTREMES OF THE
PLASTIC BODY, INCLUDING ANY MISMATCH BETWEEN TOP AND BOTTOM PLASTIC BODY. THEY
ARE DETERMINED AT DATUM PLANE "H".
4. DIMENSIONS "b" AND "c" APPLY TO THE FLAT SECTION OF THE LEAD BETWEEN 0.08 mm AND
0.15 mm FROM THE LEAD TIP.
5. DETAILS OF THE PIN 1 IDENTIFIER ARE OPTIONAL, BUT MUST BE LOCATED WITHIN THE ZONE
INDICATED.
4
PRODUCT PREVIEW
3
DESCRIPTION
A
Revision 2.0 (08-10-12)
REVISION HISTORY
REVISION
5
3
SEATING PLANE
0° - 8°
L
(0.95)
DETAIL "A"
UNLESS OTHERWISE SPECIFIED
DIMENSIONS ARE IN MILLIMETERS
AND TOLERANCES ARE:
DECIMAL
±0.1
X.X
X.XX ±0.05
X.XXX ±0.025
THIRD ANGLE PROJECTION
80 ARKAY DRIVE
HAUPPAUGE, NY 11788
USA
ANGULAR
±1°
TITLE
NAME
DATE
S.K.ILIEV
3/29/05
DIM AND TOL PER ASME Y14.5M - 1994
MATERIAL
FINISH
-
PRINT WITH "SCALE TO FIT"
DO NOT SCALE DRAWING
PACKAGE OUTLINE
10 PIN TSSOP, 3x3 MM BODY, 0.50 MM PITCH
DRAWN
CHECKED
S.K.ILIEV
DWG NUMBER
S.K.ILIEV
STD COMPLIANCE
SCALE
3/29/05
Figure 1 10 Pin MSOP / TSSOP Package
REV
MO-10-TSSOP-3x3
3/29/05
APPROVED
1:1
JEDEC: MO-187
A
SHEET
1 OF 1
SMSC EMC1423 / EMC1424
1°C Temperature Sensor with Hardware Thermal Shutdown
Package Outline
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