TC1046AVNB [MICROCHIP]
SPECIALTY ANALOG CIRCUIT, PDSO3, TO-236, SOT-23B, 3 PIN;
| 型号： | TC1046AVNB |
| 厂家： | 
MICROCHIP |
| 描述： | SPECIALTY ANALOG CIRCUIT, PDSO3, TO-236, SOT-23B, 3 PIN 光电二极管 |
| 文件： | 总6页 (文件大小：40K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
TC1046A
High Precision Temperature-To-Voltage Converter
FEATURES
GENERAL DESCRIPTION
ꢀ 2.5V to 5.5V Operating Range
The TC1046A is a linear output temperature sensor
whose output voltage is directly proportional to measured
temperature. The TC1046A can accurately measure tem-
perature from –40°C to +125°C.
The output voltage range for this device is typically 174
mV at –40°C, 424 mV at 0°C, 580 mV at +25°C, and 1205
mV at +125°C. A 6.25 mV/°C voltage slope allows for the
wide temperature range.
ꢀ Wide Temperature Measurement Range ................
........................................................ –40oC to +125oC
ꢀ High Temperature Converter Accuracy..................
................................................... ± 2oC, Max, at 25°C
ꢀ Linear Temperature Slope .................... 6.25 mV/oC
ꢀ Small 3-Pin SOT-23BꢀPackage
ꢀ Very Low Supply Current................... 35µA Typical
The TC1046A is packaged in space saving 3-Pin
SOT-23B package, making it ideal for space critical appli-
cations.
TYPICAL APPLICATIONS
ꢀ Cellular Phones
ORDERING INFORMATION
ꢀ Power Supply Thermal Shutdown
ꢀ Temperature-Controlled Fans
ꢀ Temperature Measurement/Instrumentation
ꢀ Temperature Regulators
Part No.
Package
Temp. Range
(Sensor)
TC1046AVNB
3-Pin SOT-23B
–40°C to +125°C
ꢀ Consumer Electronics
ꢀ Portable Battery Powered Equipment
FUNCTIONAL BLOCK DIAGRAM
PIN CONFIGURATION
V
DD = 2.5V to 5.5V
3-Pin SOT-23B*
MICROCONTROLLER
VSS
3
VDD
A/D
CONVERTER
VOUT
TC1046A
VSS
TC1046A
2
1
VDD
VOUT
Note: *3-Pin SOT-23B is equivalent to JEDEC TO-236
2001 Microchip Technology Inc. DS21496A
TC1046A-1 01/03/01
High Precision Temperature-to-
Voltage Converter
TC1046A
ABSOLUTE MAXIMUM RATINGS*
*Static-sensitive device. Unused devices must be stored in conductive
material. Protect devices from static discharge and static fields. Stresses
above those listed under Absolute Maximum Ratings may cause perma-
nent 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 operational sections of the specifications is not implied.
Exposure to Absolute Maximum Rating Conditions for extended periods
may affect device reliability.
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
Lead Temperature (Soldering, 10 sec) ................. +260°C
ELECTRICAL CHARACTERISTICS:
TA = –40°C to +125°C, VDD = 2.5V to 5.5V, unless otherwise specified.
Symbol
VDD
Parameter
Test Conditions
Min
2.5
—
Typ
Max
5.5
60
Units
Supply Voltage
—
V
IQ
Supply Current, Operating
Average Slope of Output Voltage
Temperature Accuracy at 25°C
35
µA
AV
—
6.25
±0.5
±0.5
1.0
—
mV/°C
°C
TMPACY
TA = 25°C
–2
+2
TA = +125°C
TA = –40°C
TA = –40°C
TA = 25°C
–3
+3
°C
–3
+3
°C
VOUT
Output Voltage
155
568
1187
100
174
580
1205
—
193
592
1224
—
mV
mV
mV
µA
TA = +125°C
IOUT
Output Source and Sink Current
DETAILED DESCRIPTION
The TC1046A has an output voltage that varies linearly
with temperature in degrees Celsius. Figure 1 shows a plot
of the output voltage versus temperature for the TC1046.
The temperature slope is fixed at 6.25 mV/°C and the output
voltage at 0°C is 424 mV.
V
= (6.25 mV/°C) (Temperature °C) + 424 mV
OUT
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
0
60
125
–30
10 20
40
70
Temperature (°C)
Figure 1. Output Voltage vs. Temperature for TC1046
2001 Microchip Technology Inc. DS21496A
2
TC1046A-1 01/03/01
High Precision Temperature-to-
Voltage Converter
TC1046A
TYPICAL CHARACTERISTIC CURVES
Temperature Accuracy vs.Temperature
4.0
3.0
2.0
V
=5.5V
DD
V
=2.5V
DD
1.0
0.0
–1.0
–2.0
–3.0
–4.0
10 20
80
–50 –40
–20 –10
0
30
60
100
120
90
110
130
140
–30
40 50
70
Temperature (°C)
Supply Current vs.Temperature
60.0
50.0
V
=5.5V
DD
40.0
30.0
20.0
10.0
V
=2.5V
DD
0.0
–10
5
65
110
125
–25
–40
20
35
50
80
95
Temperature (°C)
2001 Microchip Technology Inc. DS21496A
3
TC1046A-1 01/03/01
High Precision Temperature-to-
Voltage Converter
TC1046A
PIN DESCRIPTION
Pin Number
Name
Description
1
2
3
VDD
VOUT
VSS
Input Supply Voltage
Temperature Sensor Output Terminal
Ground Terminal
MARKINGS
ꢀꢀ &
ꢁ = part number code + temperature range and
3-Pin SOT-23B
voltage
(two letter code)
Part Number Code
TC1046AVNB BK
B
K
ex: 1046AVNB= ꢂꢂꢂꢂ
ꢃ represents year and 2-month period code
ꢄ represents lot ID number
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
2001 Microchip Technology Inc. DS21496A
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TC1046A-1 01/03/01
High Precision Temperature-to-
Voltage Converter
TC1046A
PACKAGE DIMENSIONS
3-Pin SOT-23B (JEDEC TO-236)
.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)
.010 (0.25)
.005 (0.13)
.004 (0.10)
.001 (0.02)
.081 (2.05)
.070 (1.78)
Dimensions: inches (mm)
2001 Microchip Technology Inc. DS21496A
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TC1046A-1 01/03/01
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01/09/01
All rights reserved.
©
2001 Microchip Technology Incorporated. Printed in the USA. 1/01
Printed on recycled paper.
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2001 Microchip Technology Inc. DS21496A
6
TC1046A-1 01/03/01
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