TC1047/TC1047A
Precision Temperature-to-Voltage Converter
Features
鈥?Supply Voltage Range:
- TC1047: 2.7V to 4.4V
- TC1047A: 2.5V to 5.5V
鈥?Wide Temperature Measurement Range:
-40
o
C to +125
o
C
鈥?High Temperature Converter Accuracy:
鹵 2
o
C, Max, at 25擄C
鈥?Linear Temperature Slope 10mV/擄C (typ.)
鈥?Available in 3-Pin SOT-23B Package
鈥?Very Low Supply Current:
- 35碌A(chǔ) Typical
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擄C to +125擄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擄C, 500mV at 0擄C, 750mV at +25擄C, and
1.75V at +125擄C. A 10mV/擄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.
Applications
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
Cellular Phones
Power Supply Thermal Shutdown
Temperature Controlled Fans
Temperature Measurement/Instrumentation
Temperature Regulators
Consumer Electronics
Portable Battery Powered Equipment
Block Diagram
V
DD
= 2.5V to 5.5V
PICmicro
廬
Microcontroller
V
DD
Device Selection Table
Part Number
TC1047VNB
TC1047AVNB
Package
3-Pin SOT-23B
3-Pin SOT-23B
Temp. Range
-40擄C to +125擄C
-40擄C to +125擄C
TC1047A
V
SS
A/D
Converter
Package Type
3-Pin SOT-23B*
V
SS
3
TC1047
TC1047A
1
V
DD
2
V
OUT
Note:
* 3-Pin SOT-23B is equivalent to JEDEC TO-236
2002 Microchip Technology Inc.
DS21498B-page 1
漏
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