TOKO TK11031M

TK11031
TEMPERATURE SENSOR IC
APPLICATIONS
FEATURES
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Linear Output Voltage 10 mV/°C Output
Active High On/Off Control
4.5 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 TK11031 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. The device is in the “on” state when the control pin
is pulled to a logic high level.
TK11031
VCC
GND
HS
VOUT
VCONT
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.
Note: Connect Pin 2 to GND.
The TK11031 has a compensation pin for a 0.1 µF capacitor
that ensures stability over the IC's operating temperature
range.
The TK11031 is available in a miniature SOT-25 surface
mount package.
BLOCK DIAGRAM
VCC
ORDERING INFORMATION
VCC
VCONT
TK11031M
ON/OFF
CIRCUIT
TEMPERATURE
DETECTION
CIRCUIT
+
VOUT
-
Tape/Reel Code
TAPE/REEL CODE
GND
HS
TL: Tape Left
January 1999 TOKO, Inc.
Page 1
TK11031
ABSOLUTE MAXIMUM RATINGS
Supply Voltage ......................................................... 12 V
Operating Voltage .......................................... 4.5 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
TK11031 ELECTRICAL CHARACTERISTICS
Test Conditions: VCC = 5.0 V, VCONT = 2.4 V, IOUT = 0 µA, TA = 25 °C, unless otherwise specified.
SYMBOL
VOUT
PARAMETER
Output Voltage
TEST CONDITIONS
MIN
TYP
MAX
UNITS
TA = 25 ° C
2.952
2.982
3.012
V
TA = 85 ° C
3.551
3.591
3.631
V
TA = -30 ° C
2.435
V
TC
Temperature Coefficient
TA = 25 ° C to 85 ° C
9.35
10.15
10.95
mV/° C
Li ne R eg
Line Regulation
VCC = 5 to 10 V
-20
5
20
mV
Load Reg
Load Regulation
IOUT = 0 to 400 µA
3
20
mV
ICC
Supply Current
90
150
µA
IOUT
Output Current
∆VOUT ≤ 20 mV
400
µA
ICC(STBY)
Standby Supply Current
VCONT ≤ 0.6 V
1
µA
VCC
V
0.6
V
7.5
µA
CONTROL TERMINAL SPECIFICATIONS
VCONT(ON)
Control Voltage (ON)
VOUT = 2.952 to 3.012 V, Output ON
VCONT(OFF)
Control Voltage (OFF)
VOUT ≤ 0.1 V, Output OFF
ICONT
Control Current
1.8
2.4
GND
4.5
Note 1: Power dissipation is 150 mW when mounted as recommended. Derate at 1.2 mW/°C for operation above 25 °C.
Page 2
January 1999 TOKO, Inc.
TK11031
TEST CIRCUIT
VCONT
VCC
ICONT
VCONT
ICC
VOUT
VCC
COUT
+
GND
HS
IOUT
VOUT
0.1 µF
10 µF
TYPICAL PERFORMANCE CHARACTERISTICS
VCC = 5 V, VCONT = 2.4 V, IOUT = 0 µA, TA = 25 °C, unless otherwise specified.
LINEARITY ERROR vs.
TEMPERATURE
100
3
1
90
2
ICC (µA)
2
0
80
1
-1
70
0
-2
60
-40
0
40
80
-40
120
0
40
80
120
-40
40
80
120
TA (°C)
TA (°C)
INPUT CURRENT vs.
INPUT VOLTAGE
LINE REGULATION
LOAD REGULATION
20
20
90
10
10
80
VERR (mV)
100
0
0
70
-10
-10
60
-20
-20
2
0
TA (°C)
VERR (mV)
ICC (µA)
INPUT CURRENT vs.
TEMPERATURE
4
TERR ( C)
VOUT (V)
OUTPUT VOLTAGE vs.
TEMPERATURE
4
6
VCC (V)
January 1999 TOKO, Inc.
8
10
2
4
6
VCC (V)
8
10
0
100
200
300
400
IOUT (µA)
Page 3
TK11031
TYPICAL PERFORMANCE CHARACTERISTICS (CONT.)
VCC = 5 V, VCONT = 2.4 V, IOUT = 0 µA, TA = 25 °C, unless otherwise specified.
INPUT CURRENT vs.
CONTROL VOLTAGE
CONTROL CURRENT vs.
TEMPERATURE
100
6
3
75
5
2
ICONT (µA)
4
ICC (µA)
VOUT (V)
OUTPUT VOLTAGE vs.
CONTROL VOLTAGE
50
4
1
25
3
0
0
2
0
0.6
1.2
1.8
0
2.4
0.6
1.2
1.8
2.4
-40
CONTROL VOLTAGE RESPONSE A
CONTROL VOLTAGE RESPONSE B
4
4
COUT = 0 µF
3
4
VOUT (V)
3
6
VOUT (V)
ICONT (µA)
120
CONTROL CURRENT vs.
CONTROL VOLTAGE
2
2
2
1
1
0
0
0
0.6
1.2
1.8
0
2.4
1
2
3
0
4
1
2
3
4
VCONT (V)
TIME (ms)
TIME (ms)
RIPPLE REJECTION RATIO A
RIPPLE REJECTION RATIO B
TEMPERATURE RESPONSE A
4
80
80
COUT = 0 µF
COUT = 0.1 µF
3
RR (dB)
40
Vrr = 100 mVrms
20
VOUT (V)
60
60
RR (dB)
80
TA (°C)
COUT = 0.1 µF
40
Vrr = 100 mVrms
20
10
100
1k
f (Hz)
10 k
100 k
25 TO 85 °C
2
1
0
0
0
Page 4
40
VCONT (V)
8
0
0
VCONT (V)
10
100
1k
f (Hz)
10 k
100 k
0
20
40
60
80
TIME (s)
January 1999 TOKO, Inc.
TK11031
TYPICAL PERFORMANCE CHARACTERISTICS (CONT.)
VCC = 5 V, VCONT = 2.4 V, IOUT = 0 µA, TA = 25 °C, unless otherwise specified.
TEMPERATURE RESPONSE B
4
VOUT (V)
3
25 TO -30 °C
2
1
0
0
20
40
60
80
TIME (s)
January 1999 TOKO, Inc.
Page 5
TK11031
PACKAGE OUTLINE
Marking Information
SOT-25 (SOT-23-5)
0.7
TK11031
Marking
31C
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 6
© 1999 Toko, Inc.
All Rights Reserved
January 1999 TOKO, Inc.
IC-231-TK11031
0798O0.0K
Printed in the USA