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TK11052 Schematic ( PDF Datasheet ) - TOKO

Teilenummer TK11052
Beschreibung THERMOSTAT IC
Hersteller TOKO
Logo TOKO Logo 




Gesamt 12 Seiten
TK11052 Datasheet, Funktion
TK11052
THERMOSTAT IC
FEATURES
s Internal Temperature Sensor, Voltage Reference
and Two Comparators with
s Temperature Threshold and Hysteresis Set by Only
Two External Resistors
s Output Logic:
Low to High with Increasing Temp. by OUTPUT1
High to Low with Increasing Temp. by OUTPUT2
s Very Wide Operating Supply Range
(VCC = 2.7 to 6.0 V)
s Miniature Package (SOT23L-8)
s Minimum External Parts Count
s Low Power Consumption
s Very Wide Temperature Range
DESCRIPTION
The TK11052 is an accurate temperature controller IC for
use over the -30 to +105 °C temperature range. The
TK11052 monolithic bipolar integrated circuit contains a
temperature sensor, stable voltage reference and two
comparators, making the device very useful as an on/off
thermostat. Two external resistors easily set the sensing
temperature threshold and hysteresis of each thermostat.
Its wide operating voltage range of 2.7 to 6.0 V makes this
IC suitable for a number of applications requiring an
accurate thermostat.
APPLICATIONS
s Home and Industrial Thermostats
s Home Appliance Temperature Control
s Notebook Computer Temperature Monitor
s Pentium Processor Temperature Monitor
s Power Supply Overtemperature Protection
s Copy Machine Overtemperature Protection
s System Overtemperature Protection
TK11052
INPUT1
INPUT2
01S
VCC
VREF
OUTPUT1
OUTPUT2
GND
NC
The TK11052 is available in a miniature SOT23L-8 surface
mount package.
BLOCK DIAGRAM
ORDERING INFORMATION
TK11052MTL
Tape/Reel Code
TAPE/REEL CODE
TL: Tape Left
IIB1
ISH1
IIB2
ISH2
- COMP1
+
+ COMP2
-
TEMPERATURE
SENSOR
TC = 6.1 mV/ °C
IOUT
Vref = 1.597 V
REFERENCE
VOLTAGE
ISINK1
ISINK2
July 1999 TOKO, Inc.
Page 1






TK11052 Datasheet, Funktion
TK11052
TYPICAL PERFORMANCE CHARACTERISTICS (CONT.)
TA = 25 °C, VCC = 3 V, IOUT = 80 µA, unless otherwise specified.
LOAD REGULATION
2
1
0
-1
-2
-3
0 0.1 0.2 0.3 0.4 0.5
IOUT (mA)
RIPPLE REJECTION (Vref) vs.
FREQUENCY
100
80
60
40
20
0
Vref - GND
Cref = 0 F
10 100 1k 10k 100k 1M
frr (Hz)
REFERENCE VOLTAGE vs.
SUPPLY VOLTAGE
2.0
1.6
1.2
0.8
0.4
0
01 23 45
VCC (V)
Page 6
COMPARATOR OUTPUT LOW LEVEL
vs. OUTPUT SINK CURRENT
125
100
75
50
25
0
0 0.2 0.4 0.6 0.8 1.0
ISINK (mA)
RIPPLE REJECTION (Vref) vs.
FREQUENCY
100
80
Vref - GND
Cref= 0.1 µF
60
40
20
0
10 100 1k 10k 100k 1M
frr (Hz)
SUPPLY VOLTAGE RESPONSE
2.0 VCC = 0 V to 3 V
1.6
1.2
0.8
0.4
0
0 0.1 0.2 0.3 0.4 0.5
TIME (msec)
July 1999 TOKO, Inc.

6 Page









TK11052 pdf, datenblatt
TK11052
PACKAGE OUTLINE
SOT-23L (SOT23L-8)
0.45
85
marking
1
e 0.8
+0.3
3.5 - 0.1
(3.4)
4
+0.15
0.3- 0.05
0.1 M
e 0.8
Recommended Mount Pad
2.2
Marking Information
TK11052
Marking
52C
0.1
Dimensions are shown in millimeters
Tolerance: x.x = ± 0.2 mm (unless otherwise specified)
+ 0.3
3.3
0.4
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 12
© 1999 Toko, Inc.
All Rights Reserved
IC-xxx-TK11052
0798O0.0K
July 1999 TOKO, Inc.
Printed in the USA

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