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TelCom Semiconductor - (TC1024) PRECISION TEMPERATURE-TO-VOLTAGE CONVERTERS WITH SHUTDOWN MODE

Numéro de référence TC1023
Description (TC1024) PRECISION TEMPERATURE-TO-VOLTAGE CONVERTERS WITH SHUTDOWN MODE
Fabricant TelCom Semiconductor 
Logo TelCom Semiconductor 





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TC1023 fiche technique
PRECISION TEMPERATURE-TO-VOLTAGE
CONVERTERS WITH SHUTDOWN MODE
PRELIMINARY INFORMATION
TTCC110023
TTCC110024
PRECISION TEMPERATURE-TO-VOLTAGE CONVERTERS
WITH SHUTDOWN MODE
FEATURES
s Linearized Temperature-to-Voltage Converters
s Direct Centigrade Output Voltage Scaling (TC1023)
s Shutdown/Calibrate Mode
s Multi-Zone Temperature Sensing Capability
s Wide Temperature Measurement
Range (TC1024) ........................... – 20°C to +125°C
s Excellent Temperature Converter Linearity .. 0.8°C
Over Temperature
s High Temperature Converter Accuracy ......... ± 2°C
at 25°C Guaranteed
s Small Packages ......... 8-Pin SOIC and 8-Pin MSOP
APPLICATIONS
s Power Supply Thermal Shut-Down
s Temperature-Controlled Fans
s Temperature Measurement/Instrumentation
s Temperature Regulators
s Consumer Electronics
s Lithium Battery Temperature Monitor
GENERAL DESCRIPTION
The TC1023/1024 temperature sensors furnish a lin-
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., VOUT =
10mV/°C x Temperature °C). An external pull-down resis-
tor to a negative voltage source is required for temperature
measurement below 0°C.
The TC1024 has a temperature measurement range of
– 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 1µA (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.
Small size, low cost, flexibility and low power operation
make the TC1023/1024 suitable for a wide range of gen-
eral purpose temperature measurement applications.
TYPICAL APPLICATION
VCC = 2.2V to 12V
VCC VOUT
TC1023
GND CE
MICROCONTROLLER
A/D
CONVERTER
I/O LINE
ORDERING INFORMATION
Part No.
Package
Output
Voltage
At 25°C
TC1023VOA
TC1023VUA
TC1024VOA
TC1024VUA
8-Pin SOIC
8-Pin MSOP
8-Pin SOIC
8-Pin MSOP
250mV
250mV
750mV
750mV
Temp. Range
– 20°C to +100°C
– 20°C to +100°C
– 20°C to +125°C
– 20°C to +125°C
PIN CONFIGURATION
8-Pin SOIC
MSOP-8
VOUT
NC
NC
GND
1
2
3
4
TC1023VOA
TC1024VOA
8 VCC VOUT 1
8 VCC
7 NC
6 NC
NC
NC
GND
2
3
4
TC1023VUA
TC1024VUA
7 NC
6 NC
5 CE
5 CE
TC1023/1024-05 6/12/97 TelCom Semiconductor reserves the right to make changes in the circuitry and 1specifications of its devices.

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