TOKO TK11042M-1

TK11042
TEMPERATURE SENSOR IC
FEATURES
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APPLICATIONS
Linear Output Voltage 6 mV/°C Output
2.7 to 10.0 V Supply Range
Miniature Package (SOT-25)
Minimum External Parts Count
Low Power Consumption
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Home and Industrial Thermostats
Automotive Climate Control
Battery Charger Temperature Monitor
Notebook Computer Temperature Monitor
Electronic Thermometers
Fish Finder Water Temperature
Industrial Process Controllers
Home Appliance Temperature Control
DESCRIPTION
The TK11042 is a temperature sensor IC with a linear
output of 6 mV/°C over the range of -30 to + 105 °C. Its
wide operating voltage range of 2.7 to 10.0 V makes it
suitable for a number of applications requiring accurate
temperature control, such as electronic thermostats for
climate control, refrigerators, and industrial process
controls.
TK11042
VCC
01 S
HS
A typical application is to make a digital representation of
temperature with an A/D converter, or to make a thermal
detector with a comparator.
The TK11042 has a compensation pin for a 0.1 µF capacitor
that ensures stability over the IC's operating temperature
range.
GND
NC
VOUT
Note: Connect pin 2 to GND
The TK11042 is available in a miniature SOT-25 surface
mount package.
BLOCK DIAGRAM
VCC
TK11042M-1
Tape/Reel Code
TEMPERATURE
SENSOR
ORDERING INFORMATION
X1
VOUT
TAPE/REEL CODE
TL: Tape Left
January 1999 TOKO, Inc.
Page 1
TK11042
ABSOLUTE MAXIMUM RATINGS
Supply Voltage ......................................................... 12 V
Operating Voltage .......................................... 2.7 to 10 V
Power Dissipation (Note 1) ................................ 150 mW
Junction Temperature ........................................... 150 °C
Storage Temperature Range ................... -55 to +150 °C
Operating Temperature Range .................-30 to +105 °C
Lead Soldering Temperature (10 s) ...................... 235 °C
TK11042 ELECTRICAL CHARACTERISTICS
Test Conditions: VCC = 3.0 V, IOUT = 0 µA, TA = 25 °C, unless otherwise specified.
SYMBOL
VOUT
PARAMETER
TEST CONDITIONS
Output Voltage
MIN
TYP
MAX
UNITS
TA = 25 ° C
1.776
1.794
1.812
V
TA = 85 ° C
2.131
2.155
2.179
V
TA = -30 ° C
1.463
V
TC
Temperature Coefficient
TA = 25 ° C to 85 ° C
5.50
6.02
6.50
mV/° C
Li ne R eg
Line Regulation
VCC = 3 to 10 V
-12
2
12
mV
Load Reg
Load Regulation
IOUT = 0 to 100 µA
0
2
12
mV
ICC
Supply Current
TA = 25 ° C
110
180
µA
IOUT
Output Current
∆VOUT ≤ 15 mV
400
µA
Note 1: Power dissipation is 150 mW when mounted as recommended. Derate at 1.2 mW/°C for operation above 25 °C.
2.27
OUTPUT (V)
2.15
1.94
1.79
1.64
1.52
-20 0 25 50
85 105
AMBIENT TEMPERATURE (°C)
FIGURE 1. OUTPUT CHARACTERISTICS
Page 2
January 1999 TOKO, Inc.
TK11042
TEST CIRCUIT
VCC
GND
HS
VCC
+
+ 10 F
VOUT
NC
0.1 F
Note: Connect pin 2 to ground
TYPICAL PERFORMANCE CHARACTERISTICS
VCC = 3 V, TA = 25 °C, unless otherwise specified.
OUTPUT VOLTAGE vs.
SUPPLY VOLTAGE
SUPPLY CURRENT vs.
SUPPLY VOLTAGE
OUTPUT VOLTAGE vs.
OUTPUT CURRENT
250
1.84
1.84
1.82
1.82
150
100
VOUT (V)
VOUT (V)
ICC (µA)
200
1.80
1.80
1.78
1.78
1.76
1.76
50
0
0
2
4
6
8
0
10
2
4
6
8
10
0
200
400
600
800
VCC (V)
VCC (V)
IOUT (µA)
SUPPLY CURRENT vs.
TEMPERATURE
OUTPUT VOLTAGE vs.
TEMPERATURE
LINEARITY ERROR vs.
TEMPERATURE
250
1000
5
+40
VCC = 12 V
150
100
VERR (mV)
4
VOUT (V)
ICC ( A)
200
3
2
VERR = VOUT - VREAL
+20 V
REAL = 2.98 + (TA - 25) X 10 mV
0
-20
VCC = 5 V
50
1
0
0
-40
-40
0
40
80
TA ( C)
January 1999 TOKO, Inc.
120
-40
0
40
TA (°C)
80
120
-40
0
40
80
120
TA (°C)
Page 3
TK11042
PACKAGE OUTLINE
Marking Information
SOT-25 (SOT-23-5)
0.7
TK11042
Marking
42C
Marking
1.0
4
(0.6)
1.6
e1 2.4
(0.6)
5
1
2
3
0.4
e
0.95
e
e
0.95
0.95
e'
+0.15
-0.05
1.90
Recommended Mount Pad
e 0.95
0.1
M
max
+0.15
(0.8)
± 0.3
2.8
0 - 15
0.1
0.15 - 0.05
1.1
0 - 0.1
1.4 max
2.9
Dimensions are shown in millimeters
Tolerance: x.x = ± 0.2 mm (unless otherwise specified)
Toko America, Inc. Headquarters
1250 Feehanville Drive, Mount Prospect, Illinois 60056
Tel: (847) 297-0070
Fax: (847) 699-7864
TOKO AMERICA REGIONAL OFFICES
Midwest Regional Office
Toko America, Inc.
1250 Feehanville Drive
Mount Prospect, IL 60056
Tel: (847) 297-0070
Fax: (847) 699-7864
Western Regional Office
Toko America, Inc.
2480 North First Street , Suite 260
San Jose, CA 95131
Tel: (408) 432-8281
Fax: (408) 943-9790
Eastern Regional Office
Toko America, Inc.
107 Mill Plain Road
Danbury, CT 06811
Tel: (203) 748-6871
Fax: (203) 797-1223
Semiconductor Technical Support
Toko Design Center
4755 Forge Road
Colorado Springs, CO 80907
Tel: (719) 528-2200
Fax: (719) 528-2375
Visit our Internet site at http://www.tokoam.com
The information furnished by TOKO, Inc. is believed to be accurate and reliable. However, TOKO reserves the right to make changes or improvements in the design, specification or manufacture of its
products without further notice. TOKO does not assume any liability arising from the application or use of any product or circuit described herein, nor for any infringements of patents or other rights of
third parties which may result from the use of its products. No license is granted by implication or otherwise under any patent or patent rights of TOKO, Inc.
Page 4
© 1999 Toko, Inc.
All Rights Reserved
January 1999 TOKO, Inc.
IC-228-TK11042
0798O0.0K
Printed in the USA