TK11050
TEMPERATURE CONTROLLER IC
FEATURES
s
Internal Temperature Sensor, Voltage Reference
and Comparator
s
Temperature Threshold and Hysteresis Set by Only
Two External Resistors
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Output Logic: Low to High with Increasing Temp.
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Active High On/Off Control
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2.7 to 6.0 V Supply Range
s
Miniature Package (SOT-23L-6)
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Minimum External Parts Count
s
Low Power Consumption
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Very Wide Temperature Range
APPLICATIONS
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Home and Industrial Thermostats
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Home Appliance Temperature Control
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Notebook Computer Temperature Monitor
s
Pentium Processor Temperature Monitor
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Power Supply Overtemperature Protection
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Copy Machine Overtemperature Protection
s
System Overtemperature Protection
DESCRIPTION
The TK11050 is an accurate temperature controller IC for
use over the -30 to +105
擄C
temperature range. The
TK11050 monolithic bipolar integrated circuit contains a
temperature sensor, stable voltage reference and a
comparator, making the device very useful as an on/off
temperature controller. Two external resistors easily set
the sensing temperature threshold and hysteresis. Its wide
operating voltage range of 2.7 to 6.0 V makes this IC
suitable for a number of applications requiring accurate
temperature control. The device is in the 鈥渙n鈥?state when
the control pin is pulled to a logic high level.
The TK11050 is available in a miniature SOT-23L-6 surface
mount package.
BLOCK DIAGRAM
TK11050
VCC
VCONT
VREF
COMP OUT
01S
GND
COMP IN
ORDERING INFORMATION
VCONT
ON/OFF
CIRCUIT
VCC
VPTAT
TEMPERATURE
SENSOR
TK11050MTL
Tape/Reel Code
VREF
VOLTAGE
REFERENCE
COMP OUT
-
COMP IN
+
GND
TAPE/REEL CODE
TL: Tape Left
January 1999 TOKO, Inc.
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