Page 1
January 1999 TOKO, Inc. Page 1
TK11041
TEMPERATURE SENSOR IC
DESCRIPTION
The TK11041 is a temperature sensor IC with a linear
output of 10 mV/°C over the range of -30 to + 105 °C. Its
wide operating voltage range of 4.5 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.
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 TK11041 has a compensation pin for a 0.1 µF capacitor
that ensures stability over the IC's operating temperature
range.
The TK11041 is available in a miniature SOT-25 surface
mount package.
FEATURES
■ Linear Output Voltage 10 mV/°C Output
■ 4.5 to 10.0 V Supply Range
■ Miniature Package (SOT-25)
■ Minimum External Parts Count
■ Low Power Consumption
BLOCK DIAGRAM
ORDERING INFORMATION
TAPE/REEL CODE
TL: Tape Left
Tape/Reel Code
TK11041M-1
V
CC
V
OUT
TEMPERATURE
SENSOR
X1
APPLICATIONS
■ 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
TK11041
01S
Note: Connect pin 2 to GND
HS
V
CC
NC
GND
V
OUT
Page 2
Page 2 January 1999 TOKO, Inc.
TK11041
AMBIENT TEMPERATURE (°C)
-20 0 25 50 85 105
2.53
2.73
2.98
3.23
3.58
3.78
OUTPUT (V)
Supply Voltage ......................................................... 12 V
Operating Voltage .......................................... 4.5 to 10 V
Power Dissipation (Note 1) ................................ 150 mW
Junction Temperature ...........................................150 °C
ABSOLUTE MAXIMUM RATINGS
TK11041 ELECTRICAL CHARACTERISTICS
Test Conditions: V
CC =
5.0 V, I
OUT
= 0 µA, TA = 25 °C, unless otherwise specified.
Note 1: Power dissipation is 150 mW when mounted as recommended. Derate at 1.2 mW/°C for operation above 25 °C.
Storage Temperature Range ................... -55 to +150 °C
Operating Temperature Range .................-30 to +105 °C
Lead Soldering Temperature (10 s) ...................... 235 °C
FIGURE 1. OUTPUT CHARACTERISTICS
LOBMYSRETEMARAPSNOITIDNOCTSETNIMPYTXAMSTINU
V
TUO
egatloVtuptuO
T
A
C°52=259.2289.2210.3V
T
A
C°58=345.3385.3326.3V
T
A
C°03-=134.2V
T
C
tneiciffeoCerutarepmeTT
A
C°58otC°52=2.920.018.01C°/Vm
geReniLnoitalugeReniLV
CC
V01ot5=51-251Vm
geRdaoLnoitalugeRdaoLI
TUO
Aµ001ot0=0251Vm
I
CC
tnerruCylppuST
A
C°52=011081Aµ
I
TUO
tnerruCtuptuO
∆V
TUO
≤ Vm02
004Aµ
Page 3
January 1999 TOKO, Inc. Page 3
TK11041
TYPICAL PERFORMANCE CHARACTERISTICS
VCC = 5 V, TA = 25 °C, unless otherwise specified.
TEST CIRCUIT
V
CC
10
F
0.1
F
+
+
HS
V
CC
NC
GND
V
OUT
I
CC
(µA)
150
250
SUPPLY CURRENT vs.
SUPPLY VOLTAGE
VCC (V)
50
0 2 4 6 8 10
200
100
0
V
OUT
(V)
2.98
3.02
OUTPUT VOLTAGE vs.
SUPPLY VOLTAGE
VCC (V)
2.94
0 2 4 6 8 10
3.00
2.96
V
OUT
(V)
2.98
3.02
OUTPUT VOLTAGE vs.
OUTPUT CURRENT
I
OUT
(µA)
2.94
0 200 400 600 800 1000
3.00
2.96
I
CC
(µA)
150
250
SUPPLY CURRENT vs.
TEMPERATURE
TA (°C)
50
-40 0 40 80 120
200
100
0
V
CC
= 12 V
V
CC
= 5 V
V
OUT
(V)
3
5
OUTPUT VOLTAGE vs.
TEMPERATURE
TA (°C)
1
-40 0 40 80 120
4
2
0
V
ERR
(mV)
+40
LINEARITY ERROR vs.
TEMPERATURE
TA (°C)
-40
-40 0 40 80 120
+20
-20
0
V
ERR
= V
OUT
- V
REAL
V
REAL
= 2.98 + (TA - 25) X 10 mV
Note: Connect pin 2 to ground
Page 4
Page 4 January 1999 TOKO, Inc.
TK11041
SOT-25 (SOT-23-5)
PACKAGE OUTLINE
Printed in the USA© 1999 Toko, Inc.
All Rights Reserved
TOKO AMERICA REGIONAL OFFICES
Toko America, Inc. Headquarters
1250 Feehanville Drive, Mount Prospect, Illinois 60056
Tel: (847) 297-0070 Fax: (847) 699-7864
IC-227-TK11041
0798O0.0K
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.
0.95
0.95
0.950.95
e
M
0.1
2.9
1.6
1.1
0.15
0.4
2.8
1.90
2.4
e'
Recommended Mount Pad
1
23
45
1.0
0.7
(0.8)
0 - 0.1
(0.6)
(0.6)
1.4 max
e
e e
0.1
e1
0 - 15 max
Marking
± 0.3
+0.15
- 0.05
Dimensions are shown in millimeters
Tolerance: x.x = ± 0.2 mm (unless otherwise specified)
+0.15
-0.05
Marking Information
Marking
TK11041 41C
Western Regional Office
Toko America, Inc.
2480 North First Street , Suite 260
San Jose, CA 95131
Tel: (408) 432-8281
Fax: (408) 943-9790
Midwest Regional Office
Toko America, Inc.
1250 Feehanville Drive
Mount Prospect, IL 60056
Tel: (847) 297-0070
Fax: (847) 699-7864
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
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