TC1024 TELCOM [TelCom Semiconductor, Inc], TC1024 Datasheet

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TC1024

Manufacturer Part Number
TC1024
Description
PRECISION TEMPERATURE-TO-VOLTAGE CONVERTERS WITH SHUTDOWN MODE
Manufacturer
TELCOM [TelCom Semiconductor, Inc]
Datasheet
PRECISION TEMPERATURE-TO-VOLTAGE
CONVERTERS WITH SHUTDOWN MODE
TC1023/1024-05
PRECISION TEMPERATURE-TO-VOLTAGE CONVERTERS
WITH SHUTDOWN MODE
FEATURES
APPLICATIONS
TYPICAL APPLICATION
V
Linearized Temperature-to-Voltage Converters
Direct Centigrade Output Voltage Scaling (TC1023)
Shutdown/Calibrate Mode
Multi-Zone Temperature Sensing Capability
Wide Temperature Measurement
Range (TC1024) ........................... – 20 C to +125 C
Excellent Temperature Converter Linearity .. 0.8 C
Over Temperature
High Temperature Converter Accuracy ......... 2 C
at 25 C Guaranteed
Small Packages ......... 8-Pin SOIC and 8-Pin MSOP
Power Supply Thermal Shut-Down
Temperature-Controlled Fans
Temperature Measurement/Instrumentation
Temperature Regulators
Consumer Electronics
Lithium Battery Temperature Monitor
CC
= 2.2V to 12V
TC1023
GND
V
CC
6/12/97
V
OUT
CE
TelCom Semiconductor reserves the right to make changes in the circuitry and specifications of its devices.
I/O LINE
MICROCONTROLLER
CONVERTER
A/D
1
GENERAL DESCRIPTION
earized output voltage directly proportional to measured
temperature. The TC1023 has a temperature measure-
ment range of – 20 C to +100 C. Its output voltage is
directly calibrated in degrees Centigrade (i.e., V
10mV/ C x Temperature C). An external pull-down resis-
tor to a negative voltage source is required for temperature
measurement below 0 C.
– 20 C to +125 C, and operates with a single supply. It has
the same output voltage slope with temperature as the
TC1023 (10mV/ C). The output voltage range is 100mV at
– 20 C to 1,750mV at +125 C. Both devices have a chip
enable input that reduces supply current to 1 A (typical)
when pulled active high. In this state, the output defaults to
a high resistance allowing an external reference voltage to
be directly connected for A/D calibration.
make the TC1023/1024 suitable for a wide range of gen-
eral purpose temperature measurement applications.
ORDERING INFORMATION
Part No.
TC1023VOA
TC1023VUA
TC1024VOA
TC1024VUA
PIN CONFIGURATION
V
GND
OUT
NC
NC
The TC1023/1024 temperature sensors furnish a lin-
The TC1024 has a temperature measurement range of
Small size, low cost, flexibility and low power operation
1
2
3
4
8-Pin SOIC
TC1023VOA
TC1024VOA
Package
8-Pin SOIC
8-Pin MSOP
8-Pin SOIC
8-Pin MSOP
PRELIMINARY INFORMATION
8
7
6
5
NC
V CC
NC
CE
Output
Voltage
At 25 C
250mV
250mV
750mV
750mV
V
GND
OUT
NC
NC
2
3
1
4
MSOP-8
TC1024VUA
TC1023VUA
– 20 C to +100 C
– 20 C to +100 C
– 20 C to +125 C
– 20 C to +125 C
Temp. Range
TC1023
TC1024
TC1023
TC1024
OUT
8
5
7
6
NC
NC
V
CE
CC
=

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TC1024 Summary of contents

Page 1

... Linearized Temperature-to-Voltage Converters Direct Centigrade Output Voltage Scaling (TC1023) Shutdown/Calibrate Mode Multi-Zone Temperature Sensing Capability Wide Temperature Measurement Range (TC1024) ........................... – +125 C Excellent Temperature Converter Linearity .. 0.8 C Over Temperature High Temperature Converter Accuracy ......... Guaranteed Small Packages ......... 8-Pin SOIC and 8-Pin MSOP ...

Page 2

... PRELIMINARY INFORMATION TC1023 TC1024 ABSOLUTE MAXIMUM RATINGS * Supply Voltage ............................................................15V Input Voltage, Any Terminal .............. – 1 Operating Temperature (TC1023) ......... – +100 C Operating Temperature (TC1024) ......... – +125 C Storage Temperature ............................ – +150 C Lead Temperature (Soldering, 10 sec) ................. +300 C ELECTRICAL CHARACTERISTICS : Symbol Parameter V ...

Page 3

... CONVERTERS WITH SHUTDOWN MODE DETAILED DESCRIPTION A plot of output voltage versus temperature for both the TC1023 and TC1024 appears in Figure 5. The TC1023 can be used with single power supply to measure temperatures from 100 C. A pull-down resistor (R1 in Figure 1) must be added from the output pin to the negative power supply for measuring temperatures less than 0 C ...

Page 4

... PRELIMINARY INFORMATION TC1023 TC1024 1.8 1.7 TC1023: V OUT = (10mV/ C) (Temperature C) TC1024: V OUT = (10mV/ C) (Temperature C) + 500mV 1.6 1.5 1.4 1.3 1.2 1.1 1.0 TC1024 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 – 0.1 – 0.2 – 40 – 30 – 20 –10 TC1023/1024-05 6/12/97 PRECISION TEMPERATURE-TO-VOLTAGE CONVERTERS WITH SHUTDOWN MODE TC1023 TEMPERATURE ( C) Figure 5. Output Voltage vs. Temperature 4 130 100 110 ...

Page 5

... TC1023/1024-05 6/12/97 8-Pin SOIC PIN 1 .157 (3.99) .244 (6.20) .150 (3.81) .228 (5.79) .069 (1.75) .053 (1.35) 8 MAX. .010 (0.25) .050 (1.27) .004 (0.10) .016 (0.40) 8-Pin MSOP PIN 1 .197 (5.00) .122 (3.10) .114 (2.90) .187 (4.80) .043 (1.10) 6 MAX. MAX. .006 (0.15) .028 (0.70) .002 (0.05) .016 (0.40) 5 PRELIMINARY INFORMATION TC1023 TC1024 .010 (0.25) .007 (0.18) .008 (0.20) .005 (0.13) Dimensions: inches (mm) ...

Page 6

... PRELIMINARY INFORMATION TC1023 TC1024 Sales Offices TelCom Semiconductor 1300 Terra Bella Avenue P.O. Box 7267 Mountain View, CA 94039-7267 TEL: 415-968-9241 FAX: 415-967-1590 E-Mail: liter@c2smtp.telcom-semi.com TC1023/1024-05 6/12/97 PRECISION TEMPERATURE-TO-VOLTAGE CONVERTERS WITH SHUTDOWN MODE TelCom Semiconductor Austin Product Center 9101 Burnet Rd. Suite 214 Austin, TX 78758 ...

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