TC1046VNB [MICROCHIP]
High Precision Temperature-to-Voltage Converter; 高精度温度至电压转换器
| 型号： | TC1046VNB |
| 厂家： | 
MICROCHIP |
| 描述： | High Precision Temperature-to-Voltage Converter |
| 文件： | 总10页 (文件大小：406K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
TC1046
High Precision Temperature-to-Voltage Converter
Features
General Description
• Supply Voltage Range: 2.7V to 4.4V
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.
• Wide Temperature Measurement Range:
-40oC to +125οC
• High Temperature Converter Accuracy:
± 2oC, Max, at 25°C
• Linear Temperature Slope: 6.25mV/oC
• Very Low Supply Current: 35µA Typical
• Small 3-Pin SOT-23B Package
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.
The TC1046 is packaged in a 3-Pin SOT-23B package,
making them ideal for space critical applications.
Applications
• Cellular Phones
Functional Block Diagram
• Power Supply Thermal Shutdown
• Temperature Controlled Fans
• Temperature Measurement/Instrumentation
• Temperature Regulators
V
= 2.5V to 5.5V
DD
®
PICmicro
Microcontroller
1
V
• Consumer Electronics
DD
A/D
Converter
2
• Portable Battery Powered Equipment
V
OUT
TC1046
Device Selection Table
V
SS
3
Part Number
Package
Temp. Range
TC1046VNB 3-Pin SOT-23B -40°C to +125°C
Package Type
3-Pin SOT-23B*
V
SS
3
TC1046
2
1
V
V
OUT
DD
Note: *3-Pin SOT-23B is equivalent to JEDEC TO-236
2002 Microchip Technology Inc.
DS21496B-page 1
TC1046
*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.
1.0
ELECTRICAL
CHARACTERISTICS
Absolute Maximum Ratings*
Supply Voltage ......................................................+7V
Voltage on Any Pin with Respect to Supplies:
.................................................V -0.3 to V + 0.3V
SS
DD
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
VDD
Parameter
Min
Typ
Max
Units
Test Conditions
Supply Voltage
2.7
—
—
35
4.4
60
—
V
IQ
Supply Current, Operating
µA
AV
Average Slope of Output Voltage
Temperature Accuracy at 25°C
—
6.25
mV/°C
TMPACY
-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
—
—
µA
2.0
PIN DESCRIPTIONS
The descriptions of the pins are listed in Table 2-1
TABLE 2-1:
Pin Number
PIN FUNCTION TABLE
Symbol
Description
(3-Pin SOT-23B)
1
2
3
V
Input Supply Voltage
DD
V
Temperature Sensor Output
Ground
OUT
V
SS
DS21496B-page 2
2002 Microchip Technology Inc.
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
V
OUT
= (6.25 mV/ (˚C) (Temperature (˚C) + 424mV
1.20525
1.174
1.049
0.924
0.799
0.674
0.549
0.424
0.299
0.174
-40
30
50
100
80 90 110 120
-20 -10
60
125
-30
0
10 20
40
70
TEMPERATURE (˚C)
2002 Microchip Technology Inc
DS21496B-page 3
TC1046
4.0
TYPICAL CHARACTERISTICS
Note: 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
3.0
V
DD
2.0
1.0
0.0
= 5.5V
V
DD
= 2.5V
-1.0
-2.0
-3.0
-4.0
10 20
80
100
90
110
-50 -40
-20 -10
0
30
40
60
120
140
-30
50
70
TEMPERATURE (˚C)
Supply Current I
DD
vs.Temperature
60.0
50.0
V
DD
=5.5V
40.0
30.0
20.0
10.0
V
DD
= 2.5V
0.0
–25
–40
20
35
50
80
95
–10
5
65
110
125
TEMPERATURE (˚C)
DS21496B-page 4
2002 Microchip Technology Inc.
TC1046
5.0
5.1
PACKAGING INFORMATION
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
Carrier Width (W)
Pitch (P)
Part Per Full Reel
Reel Size
3-Pin SOT-23B
8 mm
4 mm
3000
7 in
2002 Microchip Technology Inc
DS21496B-page 5
TC1046
5.3
Package Dimensions
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)
8MAX.
.040 (1.02)
.031 (0.79)
.010 (0.25)
.005 (0.13)
.004 (0.10)
.001 (0.02)
.081 (2.05)
.070 (1.78)
Dimensions: inches (mm)
DS21496B-page 6
2002 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 recom-
mended workarounds. To determine if an errata sheet exists for a particular device, please contact one of the following:
1. Your local Microchip sales office
2. The Microchip Corporate Literature Center U.S. FAX: (480) 792-7277
3. 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.
2002 Microchip Technology Inc.
DS21496B-page 7
TC1046
NOTES:
DS21496B-page 8
2002 Microchip Technology Inc.
TC1046
Information contained in this publication regarding device
applications and the like is intended through suggestion only
and may be superseded by updates. It is your responsibility to
ensure that your application meets with your specifications.
No representation or warranty is given and no liability is
assumed by Microchip Technology Incorporated with respect
to the accuracy or use of such information, or infringement of
patents or other intellectual property rights arising from such
use or otherwise. Use of Microchip’s products as critical com-
ponents in life support systems is not authorized except with
express written approval by Microchip. No licenses are con-
veyed, implicitly or otherwise, under any intellectual property
rights.
Trademarks
The Microchip name and logo, the Microchip logo, FilterLab,
KEELOQ, microID, MPLAB, PIC, PICmicro, PICMASTER,
PICSTART, PRO MATE, SEEVAL and The Embedded Control
Solutions Company are registered trademarks of Microchip Tech-
nology Incorporated in the U.S.A. and other countries.
dsPIC, ECONOMONITOR, FanSense, FlexROM, fuzzyLAB,
In-Circuit Serial Programming, ICSP, ICEPIC, microPort,
Migratable Memory, MPASM, MPLIB, MPLINK, MPSIM,
MXDEV, PICC, PICDEM, PICDEM.net, rfPIC, Select Mode
and Total Endurance are trademarks of Microchip Technology
Incorporated in the U.S.A.
Serialized Quick Turn Programming (SQTP) is a service mark
of Microchip Technology Incorporated in the U.S.A.
All other trademarks mentioned herein are property of their
respective companies.
© 2002, Microchip Technology Incorporated, Printed in the
U.S.A., All Rights Reserved.
Printed on recycled paper.
Microchip received QS-9000 quality system
certification for its worldwide headquarters,
design and wafer fabrication facilities in
Chandler and Tempe, Arizona in July 1999
and Mountain View, California in March 2002.
The Company’s quality system processes and
procedures are QS-9000 compliant for its
PICmicro® 8-bit MCUs, KEELOQ® code hopping
devices, Serial EEPROMs, microperipherals,
non-volatile memory and analog products. In
addition, Microchip’s quality system for the
design and manufacture of development
systems is ISO 9001 certified.
2002 Microchip Technology Inc.
DS21496B-page 9
WORLDWIDE SALES AND SERVICE
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03/01/02
DS21496B-page 10
2002 Microchip Technology Inc.
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