TC1046
High Precision Temperature-to-Voltage Converter
Features
鈥?Supply Voltage Range: 2.7V to 4.4V
鈥?Wide Temperature Measurement Range:
-40
o
C to +125
慰
C
鈥?High Temperature Converter Accuracy:
鹵 2
o
C, Max, at 25擄C
鈥?Linear Temperature Slope: 6.25mV/
o
C
鈥?Very Low Supply Current: 35碌A(chǔ) Typical
鈥?Small 3-Pin SOT-23B Package
General Description
The TC1046 is a linear output temperature sensor
whose output voltage is directly proportional to
measured temperature. The TC1046 can accurately
measure temperature from -40擄C to +125擄C.
The output voltage range for these devices is typically
174mV at -40擄C, 424mV at 0擄C, 580 mV at +25擄C, and
1205mV at +125擄C. A 6.25mV/擄C voltage slope allows
for the wide temperature range.
The TC1046 is packaged in a 3-Pin SOT-23B package,
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
Functional Block Diagram
V
DD
= 2.5V to 5.5V
PICmicro廬
Microcontroller
2
A/D
Converter
1
V
DD
V
OUT
Device Selection Table
Part Number
TC1046VNB
Package
3-Pin SOT-23B
Temp. Range
-40擄C to +125擄C
TC1046
V
SS
3
Package Type
3-Pin SOT-23B*
V
SS
3
TC1046
1
V
DD
2
V
OUT
Note:
*3-Pin SOT-23B is equivalent to JEDEC TO-236
2002 Microchip Technology Inc.
DS21496B-page 1
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