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MAX6642ATT9A

Description
DIGITAL TEMP SENSOR-SERIAL, 10BIT(s), 1Cel, SQUARE, SURFACE MOUNT
CategoryThe sensor    Sensor/transducer   
File Size149KB,14 Pages
ManufacturerMaxim
Websitehttps://www.maximintegrated.com/en.html
Download Datasheet Parametric Compare View All

MAX6642ATT9A Overview

DIGITAL TEMP SENSOR-SERIAL, 10BIT(s), 1Cel, SQUARE, SURFACE MOUNT

MAX6642ATT9A Parametric

Parameter NameAttribute value
Is it lead-free?Contains lead
Is it Rohs certified?incompatible
MakerMaxim
package instruction3 X 3 MM, 0.80 MM HEIGHT, MO-229WEEC, TDFN-6
Reach Compliance Code_compli
Maximum accuracy (Celsius)1 Cel
body width3 mm
body height0.8 mm
Body length or diameter3 mm
JESD-609 codee0
Installation featuresSURFACE MOUNT
Number of digits10
Number of terminals6
Maximum working current1 mA
Maximum operating temperature125 °C
Minimum operating temperature-40 °C
Output interface type2-WIRE INTERFACE
Package body materialPLASTIC/EPOXY
Encapsulate equivalent codeSOLCC6,.13,38
Package Shape/FormSQUARE
power supply3.3/5 V
Sensor/Transducer TypeTEMPERATURE SENSOR,SWITCH/DIGITAL OUTPUT,SERIAL
Maximum supply voltage5.5 V
Minimum supply voltage3 V
surface mountYES
technologyBICMOS
Temperature CoefficientPOSITIVE ppm/°C
Terminal surfaceTin/Lead (Sn/Pb)
Termination typeSOLDER
19-2920; Rev 3; 10/09
KIT
ATION
EVALU
BLE
AVAILA
±1°C, SMBus-Compatible Remote/Local
Temperature Sensor with Overtemperature Alarm
General Description
The MAX6642 precise, two-channel digital temperature
sensor accurately measures the temperature of its own
die and a remote PN junction and reports the tempera-
ture data over a 2-wire serial interface. The remote PN
junction is typically a substrate PNP transistor on the
die of a CPU, ASIC, GPU, or FPGA. The remote PN
junction can also be a discrete diode-connected small-
signal transistor.
The 2-wire serial interface accepts standard system
management bus (SMBus™), Write Byte, Read Byte,
Send Byte, and Receive Byte commands to read the
temperature data and to program the alarm thresholds.
To enhance system reliability, the MAX6642 includes an
SMBus timeout. The temperature data format is 10 bit
with the least significant bit (LSB) corresponding to
+0.25°C. The
ALERT
output asserts when the local or
remote overtemperature thresholds are violated. A fault
queue may be used to prevent the
ALERT
output from
setting until two consecutive faults have been detected.
Measurements can be done autonomously or in a sin-
gle-shot mode.
Remote accuracy is ±1°C maximum error between
+60°C and +100°C. The MAX6642 operates from -40°C
to +125°C, and measures remote temperatures
between 0°C and +150°C. The MAX6642 is available in
a 6-pin TDFN package with an exposed pad.
Features
o
Dual Channel: Measures Remote and Local
Temperature
o
+0.25°C Resolution
o
High Accuracy ±1°C (max) (Remote) and
±2°C (Local) from +60°C to +100°C
o
Measures Remote Temperature Up to +150°C
o
Programmable Overtemperature Alarm
Temperature Thresholds
o
SMBus/I
2
C-Compatible Interface
o
Tiny TDFN Package with Exposed Pad
MAX6642
Ordering Information
PART
MAX6642ATT90-T
MAX6642ATT92-T
MAX6642ATT94-T
MAX6642ATT96-T
MAX6642ATT98-T
MAX6642ATT9A-T
MAX6642ATT9C-T
MAX6642ATT9E-T
TEMP RANGE
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
PIN-PACKAGE
6 TDFN-EP*
6 TDFN-EP*
6 TDFN-EP*
6 TDFN-EP*
6 TDFN-EP*
6 TDFN-EP*
6 TDFN-EP*
6 TDFN-EP*
Applications
Desktop Computers
Notebook Computers
Servers
Thin Clients
Test and Measurement
Workstations
Graphic Cards
T = Tape and reel.
*EP
= Exposed pad.
Pin Configuration and Functional Diagram appear at end of
data sheet.
Typical Operating Circuit
3.3V
0.1μF
47Ω
Selector Guide
PART
MAX6642ATT90-T
MAX6642ATT92-T
MAX6642ATT94-T
MAX6642ATT96-T
MAX6642ATT98-T
MAX6642ATT9A-T
MAX6642ATT9C-T
MEASURED TEMP RANGE
0°C to +150°C
0°C to +150°C
0°C to +150°C
0°C to +150°C
0°C to +150°C
0°C to +150°C
0°C to +150°C
TOP
MARK
AFC
AFD
AFE
AFF
AEW
AFG
AFH
AFI
μP
2200pF
V
CC
10kΩ EACH
DXP
MAX6642
SDA
DATA
CLOCK
INTERRUPT TO
μP
SCLK
ALERT
GND
MAX6642ATT9E-T
0°C to +150°C
SMBus is a trademark of Intel Corp.
________________________________________________________________
Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.

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Is it lead-free? Contains lead Contains lead Contains lead Contains lead Contains lead Contains lead Contains lead Contains lead
Is it Rohs certified? incompatible incompatible incompatible incompatible incompatible incompatible incompatible incompatible
Maker Maxim Maxim Maxim Maxim Maxim Maxim Maxim Maxim
package instruction 3 X 3 MM, 0.80 MM HEIGHT, MO-229WEEC, TDFN-6 3 X 3 MM, 0.80 MM HEIGHT, MO-229WEEC, TDFN-6 SOLCC6,.13,38 3 X 3 MM, 0.80 MM HEIGHT, MO-229WEEC, TDFN-6 SOLCC6,.13,38 3 X 3 MM, 0.80 MM HEIGHT, MO-229WEEC, TDFN-6 SOLCC6,.13,38 3 X 3 MM, 0.80 MM HEIGHT, MO-229WEEC, TDFN-6
Reach Compliance Code _compli _compli _compli _compli _compli _compli _compli _compli
Maximum accuracy (Celsius) 1 Cel 1 Cel 1 Cel - 1 Cel 1 Cel 1 Cel 1 Cel
body width 3 mm 3 mm 3 mm - 3 mm 3 mm 3 mm 3 mm
body height 0.8 mm 0.8 mm 0.8 mm - 0.8 mm 0.8 mm 0.8 mm 0.8 mm
Body length or diameter 3 mm 3 mm 3 mm - 3 mm 3 mm 3 mm 3 mm
JESD-609 code e0 e0 e0 - e0 e0 e0 e0
Installation features SURFACE MOUNT SURFACE MOUNT SURFACE MOUNT - SURFACE MOUNT SURFACE MOUNT SURFACE MOUNT SURFACE MOUNT
Number of digits 10 10 10 - 10 10 10 10
Number of terminals 6 6 6 - 6 6 6 6
Maximum working current 1 mA 1 mA 1 mA - 1 mA 1 mA 1 mA 1 mA
Maximum operating temperature 125 °C 125 °C 125 °C - 125 °C 125 °C 125 °C 125 °C
Minimum operating temperature -40 °C -40 °C -40 °C - -40 °C -40 °C -40 °C -40 °C
Output interface type 2-WIRE INTERFACE 2-WIRE INTERFACE 2-WIRE INTERFACE - 2-WIRE INTERFACE 2-WIRE INTERFACE 2-WIRE INTERFACE 2-WIRE INTERFACE
Package body material PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY - PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY
Encapsulate equivalent code SOLCC6,.13,38 SOLCC6,.13,38 SOLCC6,.13,38 - SOLCC6,.13,38 SOLCC6,.13,38 SOLCC6,.13,38 SOLCC6,.13,38
Package Shape/Form SQUARE SQUARE SQUARE - SQUARE SQUARE SQUARE SQUARE
power supply 3.3/5 V 3.3/5 V 3.3/5 V - 3.3/5 V 3.3/5 V 3.3/5 V 3.3/5 V
Sensor/Transducer Type TEMPERATURE SENSOR,SWITCH/DIGITAL OUTPUT,SERIAL TEMPERATURE SENSOR,SWITCH/DIGITAL OUTPUT,SERIAL TEMPERATURE SENSOR,SWITCH/DIGITAL OUTPUT,SERIAL - TEMPERATURE SENSOR,SWITCH/DIGITAL OUTPUT,SERIAL TEMPERATURE SENSOR,SWITCH/DIGITAL OUTPUT,SERIAL TEMPERATURE SENSOR,SWITCH/DIGITAL OUTPUT,SERIAL TEMPERATURE SENSOR,SWITCH/DIGITAL OUTPUT,SERIAL
Maximum supply voltage 5.5 V 5.5 V 5.5 V - 5.5 V 5.5 V 5.5 V 5.5 V
Minimum supply voltage 3 V 3 V 3 V - 3 V 3 V 3 V 3 V
surface mount YES YES YES - YES YES YES YES
technology BICMOS BICMOS BICMOS - BICMOS BICMOS BICMOS BICMOS
Temperature Coefficient POSITIVE ppm/°C POSITIVE ppm/°C POSITIVE ppm/°C - POSITIVE ppm/°C POSITIVE ppm/°C POSITIVE ppm/°C POSITIVE ppm/°C
Terminal surface Tin/Lead (Sn/Pb) Tin/Lead (Sn/Pb) Tin/Lead (Sn/Pb) - Tin/Lead (Sn/Pb) Tin/Lead (Sn/Pb) Tin/Lead (Sn/Pb) Tin/Lead (Sn/Pb)
Termination type SOLDER SOLDER SOLDER - SOLDER SOLDER SOLDER SOLDER
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