January 1999 TOKO, Inc.
Page 1
TK11034
TK11034
TEMPERATURE SENSOR IC
FEATURES
s
Linear Output Voltage 10 mV/
C Output
s
Active High On/Off Control
s
2.4 to 8.0 V Supply Range
s
Miniature Package (SOT-23L)
s
Minimum External Parts Count
s
Low Power Consumption
APPLICATIONS
s
Home and Industrial Thermostats
s
Automotive Climate Control
s
Battery Charger Temperature Monitor
s
Notebook Computer Temperature Monitor
s
Electronic Thermometers
s
Fish Finder Water Temperature
s
Industrial Process Controllers
s
Home Appliance Temperature Control
BLOCK DIAGRAM
ORDERING INFORMATION
TAPE/REEL CODE
TL: Tape Left
Tape/Reel Code
TK11034M
GND
VCC
NC
VOUT
VCONT
GND
01S
GND
VCONT
GND
ON/OFF
CIRCUIT
TEMPERATURE
DETECTION
CIRCUIT
VCC
VOUT
VCC
+
-
Note: Both GND pins must connect to GND
DESCRIPTION
The TK11034 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 2.4 to 8.0 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.
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 TK11034 has a compensation pin for a 0.1
F capacitor
that ensures stability over the IC's operating temperature
range.
The TK11034 is available in a miniature SOT-23L surface
mount package.
Page 2
January 1999 TOKO, Inc.
TK11034
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7
A
Supply Voltage ......................................................... 12 V
Operating Voltage ............................................ 2.4 to 8 V
Power Dissipation (Note 1) ................................ 200 mW
Junction Temperature ........................................... 150
C
ABSOLUTE MAXIMUM RATINGS
TK11034 ELECTRICAL CHARACTERISTICS
Test Conditions: V
CC
=
3.0 V, V
CONT
= 2.4 V, I
OUT
= 0
A, T
A
= 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 ................. -30 to +105
C
Lead Soldering Temperature (10 s) ...................... 235
C
January 1999 TOKO, Inc.
Page 3
TK11034
VCC
+
VCONT
VCONT
GND
GND
VOUT
COUT
IOUT
VOUT
0.1 F
10 F
ICC
ICONT
VCC
V
OUT
(V)
1.0
2.0
OUTPUT VOLTAGE vs.
TEMPERATURE
TA (
C)
0.0
-40 0 40 80 120
1.5
0.5
V
ERR
(mV)
0
16
LINEARITY ERROR vs.
TEMPERATURE
TA (
C)
-16
-40 0 40 80 120
8
-8
I CC
(
A)
160
200
INPUT CURRENT vs.
TEMPERATURE
TA (
C)
120
-40 0 40 80 120
180
140
I CC
(
A)
160
200
INPUT CURRENT vs.
INPUT VOLTAGE
VCC (V)
120
2 4 6 8 10
180
140
V
ERR
(
m
V)
0
20
LINE REGULATION
VCC (V)
-20
2 4 6 8 10
10
-10
V
ERR
(
m
V)
0
20
LOAD REGULATION
IOUT (A)
-20
0 100 200 300 400
10
-10
TYPICAL PERFORMANCE CHARACTERISTICS
V
CC
= 3 V, V
CONT
= 2.4 V, I
OUT
= 0
A, T
A
= 25
C, unless otherwise specified.
TEST CIRCUIT
Page 4
January 1999 TOKO, Inc.
TK11034
V
OUT
(V)
0.8
1.6
OUTPUT VOLTAGE vs.
CONTROL VOLTAGE
VCONT (V)
0
0 0.6 1.2 1.8 2.4
1.2
0.4
I CC
(
A)
100
200
INPUT CURRENT vs.
CONTROL VOLTAGE
VCONT (V)
0
0 0.6 1.2 1.8 2.4
150
50
I CONT
(
A)
4
6
CONTROL CURRENT vs.
TEMPERATURE
TA (
C)
2
-40 0 40 80 120
5
3
I CONT
(
A)
4
8
CONTROL CURRENT vs.
CONTROL VOLTAGE
VCONT (V)
0
0 0.6 1.2 1.8 2.4
6
2
V
OUT
(V)
0.8
1.6
CONTROL VOLTAGE RESPONSE A
TIME (ms)
0
0 1 2 3 4
1.2
0.4
COUT = 0.1 F
V
OUT
(V)
0.8
1.6
CONTROL VOLTAGE RESPONSE B
TIME (ms)
0
0 1 2 3 4
1.2
0.4
COUT = 0 F
RR
(dB)
40
80
RIPPLE REJECTION RATIO A
f (Hz)
0
10 100 1 k 10 k 100 k
60
20
COUT = 0.1 F
Vrr = 100 mVrms
RR (dB)
40
80
RIPPLE REJECTION RATIO B
f (Hz)
0
10 100 1 k 10 k 100 k
60
20
COUT = 0 F
Vrr = 100 mVrms
V
OUT
(V)
1.4
1.8
TEMPERATURE RESPONSE A
TIME (s)
1.0
0 20 40 60 80
1.6
1.2
25 TO 85
C
TYPICAL PERFORMANCE CHARACTERISTICS (CONT.)
V
CC
= 3 V, V
CONT
= 2.4 V, I
OUT
= 0
A, T
A
= 25
C, unless otherwise specified.
January 1999 TOKO, Inc.
Page 5
TK11034
V
OUT
(V)
0.8
1.2
TEMPERATURE RESPONSE B
TIME (s)
0.4
0 20 40 60 80
1.0
0.6
25 TO 85
C
TYPICAL PERFORMANCE CHARACTERISTICS (CONT.)
V
CC
= 3 V, V
CONT
= 2.4 V, I
OUT
= 0
A, T
A
= 25
C, unless otherwise specified.
Page 6
January 1999 TOKO, Inc.
TK11034
Marking Information
Marking
TK11034
34C
0.95
0.95
0.32
e
e
M
0.1
(3.4)
1.2
0.15
0.3
3.3
2.2
0.4
0.95
0.95
3.0
e
e
e1
0.6
1.0
Recommended Mount Pad
1
2
3
4
5
6
0 - 0.1
0.4
M
0.1
15 max
1.4 max
Marking
+0.15
- 0.05
+0.15
- 0.05
+ 0.3
Dimensions are shown in millimeters
Tolerance: x.x =
0.2 mm (unless otherwise specified)
Voltage Code
Product Code
5 PL
3.5
+0.3
- 0.1
+0.15
- 0.05
SOT-23L (SOT-23L-6)
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-xxx-TK11034
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.
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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