EMC1043 1??C Triple Temperature Sensor with Beta Compensation and Hotter of Two

EMC1043
1°C Triple Temperature
Sensor with Beta
Compensation and
Hotter of Two Zones
PRODUCT FEATURES
Data Brief
General Description
Features
The EMC1043 is a family of System Management Bus
(SMBus) temperature sensors that monitors three
temperature zones, one internal diode and two
externally connected diodes, for PC and embedded
environments. The EMC1043 includes beta
compensation circuitry to correct for variation in the beta
of measurement transistors. Other extended features
include resistance error correction and ideality factor
configuration to eliminate major sources of temperature
measurement error.1
An added feature to the EMC1043 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.
„
±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)
— Beta Compensation
—
—
—
—
„
„
„
„
Internal Temperature Diode
— ±3°C Accuracy (0°C to 85°C)
— 0.125°C Resolution
„
Low Power Operation
„
„
3.0V to 3.6V Supply
Programmable Conversion Rate
SMBus 2.0 Compliant
„
Reports Hotter of Two Diodes with Dual-core CPU
— 4uA Standby Current
„
— Four SMBus Address Available
Applications
„
Supports two External Temperature Diodes
Desktop and Notebook Computers
Hardware Management
Servers
Embedded Applications
1.Patents pending
Simplified Block Diagram
Switching
Current
Configuration
Register
Analog Mux
and Anti-Alias Filter
DN1
DP2
DN2
Local Temp
Diode
11-bit
delta-sigma
ADC
External Diode
2 Register
Digital Mux
and
Byte Interlock
Internal Diode
Register
SMCLK
Status Register
SMSC EMC1043
PRODUCT PREVIEW
SMBus Interface
External Diode
1 Register
DP1
SMDATA
Revision 1.44 (04-14-08)
1°C Triple Temperature Sensor with Beta Compensation and Hotter of Two Zones
ORDER NUMBERS:
ORDERING NUMBER
PACKAGE
FEATURES
SMBUS ADDRESS
EMC1043-1-ACZL-TR
1001_100x
EMC1043-2-ACZL-TR
EMC1043-3-ACZL-TR
EMC1043-4-ACZL-TR
8 pin MSOP Lead-Free
RoHS Compliant package
Two external diodes with
REC and Beta
Compensation and Hottest
Of Comparision
1001_000x
1001_001x
Two external diodes with
REC. Beta Compensation
on External Diode 1 only.
Hottest of Comparision
EMC1043-5-ACZL-TR
1001_101x
1001_100x
Reel size is 4,000 pieces.
Evaluation Boards available upon request. (EVB-EMC1043, EVB-EMC1043C)
80 ARKAY DRIVE, HAUPPAUGE, NY 11788 (631) 435-6000, FAX (631) 273-3123
Copyright © 2008 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
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DAMAGES.
Revision 1.44 (04-14-08)
2
PRODUCT PREVIEW
SMSC EMC1043
1°C Triple Temperature Sensor with Beta Compensation and Hotter of Two Zones
Package Outline
Figure 1 8-Pin MSOP Package Outline - 3x3mm Body 0.65mm Pitch
Table 1 8-Pin MSOP Package Parameters
MIN
NOMINAL
MAX
REMARKS
A
0.80
~
1.10
Overall Package Height
A1
0.05
~
0.15
Standoff
A2
0.75
0.85
0.95
Body Thickness
D
2.80
3.00
3.20
X Body Size
E
4.65
4.90
5.15
Y Span
E1
2.80
~
3.20
Y body Size
H
0.08
~
0.23
Lead Foot Thickness
L
0.40
~
0.80
Lead Foot Length
L1
0.95 REF
e
Lead Length
0.65 BSC
Lead Pitch
θ
0o
~
8o
Lead Foot Angle
W
0.22
~
0.38
Lead Width
ccc
~
~
0.10
Coplanarity
Notes:
1. Controlling Unit: millimeters.
2. Tolerance on the true position of the leads is ± 0.065 mm maximum.
3. Package body dimensions D and E1 do not include mold protrusion or flash. Dimensions D and
E1 to be determined at datum plane H. Maximum mold protrusion or flash is 0.15mm (0.006 inches)
per end, and 0.15mm (0.006 inches) per side.
4. Dimension for foot length L measured at the gauge plane 0.25 mm above the seating plane.
5. Details of pin 1 identifier are optional but must be located within the zone indicated.
SMSC EMC1043
3
PRODUCT PREVIEW
Revision 1.44 (04-14-08)
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