MICROCHIP TC1046_13

TC1046
High Precision Temperature-to-Voltage Converter
Features
General Description
• Supply Voltage Range: 2.7V to 4.4V
• Wide Temperature Measurement Range:
-40oC to +125C
• High Temperature Converter Accuracy:
± 2oC, Max, at 25°C
• Linear Temperature Slope: 6.25mV/oC
• Very Low Supply Current: 35A Typical
• Small 3-Pin SOT-23B Package
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°C to +125°C.
The TC1046 is packaged in a 3-Pin SOT-23B package,
making them ideal for space critical applications.
Applications
•
•
•
•
•
•
•
The output voltage range for these devices is typically
174mV at -40°C, 424mV at 0°C, 580 mV at +25°C, and
1205mV at +125°C. A 6.25mV/°C voltage slope allows
for the wide temperature range.
Cellular Phones
Power Supply Thermal Shutdown
Temperature Controlled Fans
Temperature Measurement/Instrumentation
Temperature Regulators
Consumer Electronics
Portable Battery Powered Equipment
Functional Block Diagram
VDD = 2.5V to 5.5V
PICmicro®
Microcontroller
1
VDD
VOUT
TC1046
Device Selection Table
Part Number
Package
Temp. Range
TC1046VNB
3-Pin SOT-23B
-40°C to +125°C
2
A/D
Converter
VSS
3
Package Type
3-Pin SOT-23B*
VSS
3
TC1046
1
2
VDD
VOUT
Note: *3-Pin SOT-23B is equivalent to JEDEC TO-236
 2001-2012 Microchip Technology Inc.
DS21496C-page 1
TC1046
1.0
ELECTRICAL
CHARACTERISTICS
*Stresses above those listed under "Absolute Maximum Ratings" 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. Exposure to Absolute Maximum Rating conditions for extended
periods may affect device reliability.
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
TC1046 ELECTRICAL SPECIFICATIONS
Electrical Characteristics: These specifications apply for the entire supply voltage range and for TA = -40°C to +125°C, unless
otherwise specified.
Symbol
Parameter
Min
Typ
Max
Units
Test Conditions
VDD
Supply Voltage
2.7
—
4.4
V
IQ
Supply Current, Operating
—
35
60
A
AV
Average Slope of Output Voltage
—
6.25
—
mV/°C
TMPACY
Temperature Accuracy at 25°C
-2
-3
—
±0.5
±0.5
1.0
+2
+3
—
°C
°C
°C
TA = 25°C
TA = +125°C
TA = -40°C
VOUT
Output Voltage
—
568
1187
174
580
1205
193
592
1224
mV
mV
mV
TA = -40°C
TA = 25°C
TA = +125°C
IOUT
Output Source and Sink Current
100
—
—
A
DS21496C-page 2
2001-2012 Microchip Technology Inc.
TC1046
2.0
PIN DESCRIPTIONS
The descriptions of the pins are listed in Table 2-1
TABLE 2-1:
PIN FUNCTION TABLE
Pin Number
(3-Pin SOT-23B)
Symbol
1
VDD
Input Supply Voltage
2
VOUT
Temperature Sensor Output
3
VSS
 2001-2012 Microchip Technology Inc
Description
Ground
DS21496C-page 3
TC1046
3.0
DETAILED DESCRIPTION
The TC1046 has an output voltage that varies linearly
with temperature in degrees Celsius. See Figure 3-1,
“Output Voltage versus Temperature” for the TC1046.
The temperature slope is fixed at 6.25mV/°C and the
output voltage at 0°C is 424mV.
FIGURE 3-1:
OUTPUT VOLTAGE VS. TEMPERATURE
VOUT = (6.25 mV/ (˚C) (Temperature (˚C) + 424mV
1.20525
1.174
1.049
VOUT (Volts)
0.924
0.799
0.674
0.549
0.424
0.299
0.174
-40
-30 -20 -10
0
10
20
30
40
50
60
70 80
90 100 110 120
125
TEMPERATURE (˚C)
DS21496C-page 4
2001-2012 Microchip Technology Inc.
TC1046
4.0
Note:
TYPICAL CHARACTERISTICS
The graphs and tables provided following this note are a statistical summary based 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.
Temperature Accuracy vs. Temperature
4.0
TEMP. ACCURACY (˚C)
3.0
2.0
VDD
VDD
= 2.5V
= 5.5V
1.0
0.0
-1.0
-2.0
-3.0
-4.0
-50 -40 -30 -20 -10
0
10
20
30
40
50
60
70
80
90 100 110 120 130 140
TEMPERATURE (˚C)
Supply Current IDD vs. Temperature
60.0
50.0
VDD
=5.5V
IDD (µA)
40.0
30.0
VDD = 2.5V
20.0
10.0
0.0
–40
–25
–10
5
20
35
50
65
80
95
110
125
TEMPERATURE (˚C)
 2001-2012 Microchip Technology Inc
DS21496C-page 5
TC1046
5.0
PACKAGING INFORMATION
5.1
Package Marking Information
1 & 2 = part number code + temperature range and
voltage (two letter code)
Ex: 1046VNB = AK
3 = Year and two-month period code
4 = Lot ID number
5.2
Taping Form
Component Taping Orientation for 3-Pin SOT-23B (JEDEC TO-236) Devices
User Direction of Feed
Device
Marking
W
PIN 1
P
Standard Reel Component Orientation
For TR Suffix Device
(Mark Right Side Up)
Carrier Tape, Number of Components Per Reel and Reel Size
Package
3-Pin SOT-23B
DS21496C-page 6
Carrier Width (W)
Pitch (P)
Part Per Full Reel
Reel Size
8 mm
4 mm
3000
7 in
2001-2012 Microchip Technology Inc.
TC1046
5.3
Package Dimensions
Note:
For the most current package drawings, please see the Microchip Packaging Specification located
at http://www.microchip.com/packaging
3-Pin SOT-23B
.021 (0.54)
.015 (0.37)
.055 (1.40)
.047 (1.20)
.104 (2.64)
.083 (2.10)
.024 (0.60)
.017 (0.44)
.120 (3.05)
.105 (2.67)
.007 (0.18)
.003 (0.08)
8° MAX.
.040 (1.02)
.031 (0.79)
.004 (0.10)
.001 (0.02)
.081 (2.05)
.070 (1.78)
.010 (0.25)
.005 (0.13)
Dimensions: inches (mm)
 2001-2012 Microchip Technology Inc
DS21496C-page 7
TC1046
6.0
REVISION HISTORY
Revision C (December 2012)
Added a note to each package outline drawing.
DS21496C-page 8
2001-2012 Microchip Technology Inc.
TC1046
SALES AND SUPPORT
Data Sheets
Products supported by a preliminary Data Sheet may have an errata sheet describing minor operational differences and recommended workarounds. To determine if an errata sheet exists for a particular device, please contact one of the following:
1.
2.
Your local Microchip sales office
The Microchip Worldwide Site (www.microchip.com)
Please specify which device, revision of silicon and Data Sheet (include Literature #) you are using.
New Customer Notification System
Register on our web site (www.microchip.com/cn) to receive the most current information on our products.
 2001-2012 Microchip Technology Inc.
DS21496C-page 9
TC1046
NOTES:
DS21496C-page 10
 2001-2012 Microchip Technology Inc.
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 its family of products is one of the most secure families of its kind on the 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 committed to continuously improving the code protection features of our
products. Attempts to break Microchip’s code protection feature may be a violation of the Digital Millennium 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.
Information contained in this publication regarding device
applications and the like is provided only for your convenience
and may be superseded by updates. It is your responsibility to
ensure that your application meets with your specifications.
MICROCHIP MAKES NO REPRESENTATIONS OR
WARRANTIES OF ANY KIND WHETHER EXPRESS OR
IMPLIED, WRITTEN OR ORAL, STATUTORY OR
OTHERWISE, RELATED TO THE INFORMATION,
INCLUDING BUT NOT LIMITED TO ITS CONDITION,
QUALITY, PERFORMANCE, MERCHANTABILITY OR
FITNESS FOR PURPOSE. Microchip disclaims all liability
arising from this information and its use. Use of Microchip
devices in life support and/or safety applications is entirely at
the buyer’s risk, and the buyer agrees to defend, indemnify and
hold harmless Microchip from any and all damages, claims,
suits, or expenses resulting from such use. No licenses are
conveyed, implicitly or otherwise, under any Microchip
intellectual property rights.
Trademarks
The Microchip name and logo, the Microchip logo, dsPIC,
FlashFlex, KEELOQ, KEELOQ logo, MPLAB, PIC, PICmicro,
PICSTART, PIC32 logo, rfPIC, SST, SST Logo, SuperFlash
and UNI/O are registered trademarks of Microchip Technology
Incorporated in the U.S.A. and other countries.
FilterLab, Hampshire, HI-TECH C, Linear Active Thermistor,
MTP, SEEVAL and The Embedded Control Solutions
Company are registered trademarks of Microchip Technology
Incorporated in the U.S.A.
Silicon Storage Technology is a registered trademark of
Microchip Technology Inc. in other countries.
Analog-for-the-Digital Age, Application Maestro, BodyCom,
chipKIT, chipKIT logo, CodeGuard, dsPICDEM,
dsPICDEM.net, dsPICworks, dsSPEAK, ECAN,
ECONOMONITOR, FanSense, HI-TIDE, In-Circuit Serial
Programming, ICSP, Mindi, MiWi, MPASM, MPF, MPLAB
Certified logo, MPLIB, MPLINK, mTouch, Omniscient Code
Generation, PICC, PICC-18, PICDEM, PICDEM.net, PICkit,
PICtail, REAL ICE, rfLAB, Select Mode, SQI, Serial Quad I/O,
Total Endurance, TSHARC, UniWinDriver, WiperLock, ZENA
and Z-Scale are trademarks of Microchip Technology
Incorporated in the U.S.A. and other countries.
SQTP is a service mark of Microchip Technology Incorporated
in the U.S.A.
GestIC and ULPP are registered trademarks of Microchip
Technology Germany II GmbH & Co. & KG, a subsidiary of
Microchip Technology Inc., in other countries.
All other trademarks mentioned herein are property of their
respective companies.
© 2001-2012, Microchip Technology Incorporated, Printed in
the U.S.A., All Rights Reserved.
Printed on recycled paper.
ISBN: 9781620768822
QUALITY MANAGEMENT SYSTEM
CERTIFIED BY DNV
== ISO/TS 16949 ==
 2001-2012 Microchip Technology Inc.
Microchip received ISO/TS-16949:2009 certification for its worldwide
headquarters, design and wafer fabrication facilities in Chandler and
Tempe, Arizona; Gresham, Oregon and design centers in California
and India. The Company’s quality system processes and procedures
are for its PIC® MCUs and dsPIC® DSCs, KEELOQ® code hopping
devices, Serial EEPROMs, microperipherals, nonvolatile memory and
analog products. In addition, Microchip’s quality system for the design
and manufacture of development systems is ISO 9001:2000 certified.
DS21496C-page 11
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DS21496C-page 12
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11/29/12
 2001-2012 Microchip Technology Inc.