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
temperatu re from -40°C to +125 °C. W ith 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
100 mV at -40°C, 500 mV at 0°C, 7 50 mV at +25°C and
1.75V at +125°C. A 10 mV/°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.
*Stresses above those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are
stress ratings only and functional operation of t he device at
these or any other conditions above those indicated in the
operation sections of the specifications is not implied. Exposure to Absolute Maximum Rating conditions for extended
periods may affect device reliability.
these specifications apply for the entire supply voltage range
= -40°C
A
= +125°C
A
TEMPERATURE CHARACTERISTICS
Electrical Specifications: Unless otherwise indicated, V
ParametersSymMinTypMaxUnitsConditions
Temperature Ranges
Specified Temperature RangeT
Operating Temperatu re Ra ngeT
Storage Temperature RangeT
-40—+85°C
A
-40—+125°CNote 1
A
-65—+150°C
A
Thermal Package Resistances
Thermal Resistan ce , 3L -SO T-23Bθ
—336 — °C/W
JA
Note 1:The TC1047/TC1047A operate over this extended temperature range, but with reduced performa nce . In
any case, the Junction Temperatur e (T
) must not exceed the Absolute Maximum specification of +150°C.
Note:The graphs and tables provided following this note are a statistical summary b as ed on a limited number of
samples and are provided for informational purposes only. The performance characteristics listed herein
are not tested or guaranteed. In some graphs or tables, the data presented may be outside the specified
operating range (e.g., outside specified power supply range) and therefore outside the warranted range.
The descriptions of the pins are listed in Table 3-1.
TABLE 3-1:PIN FUNCTION TABLE
Pin No.SymbolDescription
1V
2V
3V
DD
OUT
SS
4.0DETAILED DESCRIPTION
The TC1047 and TC10 47A have an out put vol tage th at
varies linearly with temperature in degrees Celsius.
Figure 4-1 shows a plot of the output voltage versus
temperature for the TC1047 and TC1047A. The
temperature slope is fixed at 10 mV/°C and the output
voltage at 0°C is 500 mV.
V
Input Supp ly Voltage
Temperature Sensor Output Terminal
Ground Terminal
Note the following details of the code protection feature on Microchip devices:
•Microchip products meet the specification contained in their particular Microchip Data Sheet.
•Microchip believes that i ts family of products is one of the most secure families of its kind on t he market today, when used in the
intended manner and under normal conditions.
•There are dishonest and possibly illegal methods used to breach the code protection feature. All of these methods, to our
knowledge, require using the Microchip products in a manner outside the operating specifications contained in Microchip’s Data
Sheets. Most likely, the person doing so is engaged in theft of intellectual property.
•Microchip is willing to work with the customer who is concerned about the integrity of their code.
•Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their code. Code protection does not
mean that we are guaranteeing the product as “unbreakable.”
Code protection is constantly evolving. We at Microchip are com mitted to continuously improving the code protect ion f eatures of our
products. Attempts to break Microchip’s code protection feature may be a violation of the Digit al Mill ennium Copyright Act. If such acts
allow unauthorized access to your software or other copyrighted work, you may have a right to sue for relief under that Act.
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ensure that your application meets with your specifications.
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