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  Microchip Technology Semiconductor Electronic Components Datasheet  

TC1047 Datasheet

Precision Temperature-to-Voltage Converter

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TC1047 pdf
TC1047/TC1047A
Precision Temperature-to-Voltage Converter
Features
• Supply Voltage Range:
- TC1047: 2.7V to 4.4V
- TC1047A: 2.5V to 5.5V
• Wide Temperature Measurement Range:
-40oC to +125oC
• High Temperature Converter Accuracy:
± 2oC, Max, at 25°C
• Linear Temperature Slope 10mV/°C (typ.)
• Available in 3-Pin SOT-23B Package
• Very Low Supply Current:
- 35µA Typical
Applications
• Cellular Phones
• Power Supply Thermal Shutdown
• Temperature Controlled Fans
• Temperature Measurement/Instrumentation
• Temperature Regulators
• Consumer Electronics
• Portable Battery Powered Equipment
Device Selection Table
Part Number Package
TC1047VNB 3-Pin SOT-23B
TC1047AVNB 3-Pin SOT-23B
Temp. Range
-40°C to +125°C
-40°C to +125°C
Package Type
3-Pin SOT-23B*
VSS
3
TC1047
TC1047A
12
VDD
VOUT
Note: * 3-Pin SOT-23B is equivalent to JEDEC TO-236
General Description
The TC1047 and TC1047A are linear voltage output
temperature sensors whose output voltage is directly
proportional to the measured temperature. The
TC1047 and TC1047A can accurately measure
temperature from -40°C to +125°C. With the TC1047,
the supply voltage can vary between 2.7V and 4.4V.
The power supply range of the TC1047A is from 2.5V
to 5.5V.
The output voltage range for these devices is typically
100mV at -40°C, 500mV at 0°C, 750mV at +25°C, and
1.75V at +125°C. A 10mV/°C voltage slope output
response allows for a predictable temperature
measurement over a wide temperature range. The
TC1047 and TC1047A are packaged in 3-Pin SOT-23B
packages, making them ideal for space critical
applications.
Block Diagram
VDD = 2.5V to 5.5V
PICmicro®
Microcontroller
VDD
TC1047A
VSS
A/D
Converter
© 2002 Microchip Technology Inc.
DS21498B-page 1


  Microchip Technology Semiconductor Electronic Components Datasheet  

TC1047 Datasheet

Precision Temperature-to-Voltage Converter

No Preview Available !

TC1047 pdf
TC1047/TC1047A
1.0 ELECTRICAL
CHARACTERISTICS
Absolute Maximum Ratings*
Supply Voltage ......................................................+7V
Voltage on Any Pin with Respect to Supplies
..................................................VSS -0.3 to VDD +0.3V
Operating Temperature ...................... -40°C to +125°C
Storage Temperature Range .............. -55°C to +150°C
*Stresses above those listed under "Absolute Maximum Rat-
ings" may cause permanent damage to the device. These are
stress ratings only and functional operation of the device at
these or any other conditions above those indicated in the
operation sections of the specifications is not implied. Expo-
sure to Absolute Maximum Rating conditions for extended
periods may affect device reliability.
TC1047/1047A ELECTRICAL SPECIFICATIONS
Electrical Characteristics: Unless otherwise specified, these specifications apply for the entire supply voltage range and for
TA = -40°C to +125°C
Symbol
Parameter
Min Typ Max Units Test Conditions
VDD
IQ
AV
TMPACY
Supply Voltage
Supply Current, Operating
Average Slope of Output Voltage
Temperature Accuracy
VOUT
Output Voltage
IOUT
Output Source and Sink Current
2.7
2.5
-2
-3
730
1720
100
35
10
±0.5
±0.5
1.0
100
750
1750
4.4
5.5
60
+2
+3
770
1780
V
µA
mV/°C
°C
°C
°C
mV
mV
mV
µA
TC1047
TC1047A
TA = 25°C
TA = +125°C
TA = -40°C
TA = -40°C
TA = 25°C
TA = +125°C
DS21498B-page 2
© 2002 Microchip Technology Inc.


Part Number TC1047
Description Precision Temperature-to-Voltage Converter
Maker Microchip Technology
Total Page 12 Pages
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