Page 1
May, 1998 TOKO, Inc. Page 1
TK11044
ADVANCED INFORMATION
TK11044
TEMPERATURE SENSOR IC
FEATURES
■ Linear Output Voltage 10 mV/°C Output
■ 2.4 to 8.0 Volt Supply Range
■ Miniature Package (SOT-23L)
■ Minimum External Parts Count
■ Low Power Consumption
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
BLOCK DIAGRAM
ORDERING INFORMATION
TAPE/REEL CODE
TL: Tape Left
Tape/Reel Code
TK11044M-1
GND
V
CC
NC
V
OUT
NC
GND
20P
TEMPERATURE
DETECTION
CIRCUIT
GND
NC
GND
V
CC
V
OUT
V
CC
+
-
NC
Note: Both GND pins must connect to GND
DESCRIPTION
The TK11044 is a temperature sensor IC with a linear
output of 10 mV/°C over the range of -25 to + 105 °C. Its
wide operating voltage range of 2.4 to 8.0 volts 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 TK11044 has a compensation pin for a 0.1 µF capacitor
that insures stability over the IC's operating temperature
range.
The TK11044 is available in a miniature SOT 23L-6 surface
mount package.
ADVANCED
INFORMATION
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Page 2 May, 1998 TOKO, Inc.
TK11044
ADVANCED INFORMATION
SYMBOL PARAMETER TEST CONDITIONS MIN TYP MAX UNITS
V
OUT
Output Voltage
T
A
= 25 °C 965 995 1025 mV
T
A
= 85 °C 1573 1613 1653 mV
T
A
= -25 °C 480 mV
T
C
Temperature Coefficient TA= 25 °C to 85 °C 9.5 10.3 11.1 mV/ °C
Line Reg Line Regulation V
CC
= 3 V to 5 V
-20 -5 20 mV
Load Reg Load Regulation I
OUT
= 0 µA to 400 µA 3 20 mV
I
CC
Supply Current TA = 25 °C 160 200 µA
I
OUT
Output Current
∆V
OUT
≤ 20 mV
400 µA
Supply Voltage ......................................................... 12 V
Operating Voltage ............................................ 2.4 to 8 V
Power Dissipation (Note 1) ................................ 200 mW
Junction Temperature ........................................... 150 °C
ABSOLUTE MAXIMUM RATINGS
TK11044 ELECTRICAL CHARACTERISTICS
Test Conditions: V
CC =
3.0 V, I
OUT
= 0 µA, TA = 25 °C, unless otherwise specified.
Note 1: Power dissipation is 200 mW when mounted as recommended. Derate at 1.6 mW/°C for operation above 25 °C.
Storage Temperature Range ................... -55 to +150 °C
Operating Temperature Range .................-25 to +105 °C
Lead Soldering Temp. (10 s).................................235 °C
Page 3
May, 1998 TOKO, Inc. Page 3
TK11044
ADVANCED INFORMATION
+
10 µF
V
CC
V
OUT
C
OUT
0.1 µF
V
OUT
(V)
1.0
2.0
OUTPUT VOLTAGE vs.
TEMPERATURE
80 120
TA (°C)
0
400-40
1.5
0.5
V
ERR
(
m
V)
0
16
LINEARITY ERROR vs.
TEMPERATURE
80 120
TA (°C)
-16
400-40
8
-8
I
CC
(
µ
A)
160
200
INPUT CURRENT vs.
TEMPERATURE
80 120
TA (°C)
120
400-40
180
140
I
CC
(
µ
A)
160
200
INPUT CURRENT vs.
INPUT VOLTAGE
810
V
CC
(V)
120
642
180
140
V
ERR
(
m
V)
0
20
LINE REGULATION
810
V
CC
(V)
-20
642
10
-10
V
ERR
(mV)
0
20
LOAD REGULATION
300 400
I
OUT
(µA)
-20
2001000
10
-10
TYPICAL PERFORMANCE CHARACTERISTICS
VCC = 3 V, I
OUT
= 0 µA, TA = 25 °C, unless otherwise specified.
TEST CIRCUIT
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Page 4 May, 1998 TOKO, Inc.
TK11044
ADVANCED INFORMATION
RR
(dB)
40
80
RIPPLE REJECTION RATIO A
10 k 100 k
f (Hz)
0
1 k10010
60
20
C
OUT
= 0.1 µF
Vrr = 100mVrms
RR
(dB)
40
80
RIPPLE REJECTION RATIO B
10 k 100 k
f (Hz)
0
1 k10010
60
20
C
OUT
= 0.1 µF
Vrr = 100mVrms
V
OUT
(V)
1.4
1.8
TEMPERATURE RESPONSE A
60 80
TIME (s)
1.0
40200
1.6
1.2
25 °C TO 85 °C
V
OUT
(V)
0.8
1.2
TEMPERATURE RESPONSE B
60 80
TIME (s)
0.4
40200
1.0
0.6
25 °C TO -30 °C
TYPICAL PERFORMANCE CHARACTERISTICS
VCC = 3 V, I
OUT
= 0 µA, TA = 25 °C, unless otherwise specified.
Page 5
May, 1998 TOKO, Inc. Page 5
TK11044
ADVANCED INFORMATION
SOT 23L-6
Marking Information
Marking
TK11044 44C
IC-???-TK11044
PACKAGE OUTLINE
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.
TOKO AMERICA REGIONAL OFFICES
http://www.ictoko.com
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
© 1998 Toko, Inc.
All rights reserved
Printed in the USA
0.95 0.95
0.32
e e
M
0.1
3.5
1.2
0.15
0.3
3.3
2.2
0.4
0.95 0.95
3.0
ee
e1
0.6
1.0
Recommended Mount Pad
123
456
0 ~ 0.1
15
max
1.4 max
marking
+0.15
- 0.05
+0.3
- 0.1
+ 0.3
(3.4)
+0.15
- 0.05
Dimensions are shown in millimeters
Tolerance: x.x = ± 0.2 mm (unless otherwise specified)
5 PL
0.1
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