TK11051
TEMPERATURE CONTROLLER IC
FEATURES
s
Internal Temperature Sensor, Voltage Reference
and Comparator
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Temperature Threshold and Hysteresis Set by Only
Two External Resistors
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Output Logic: High to Low with Increasing Temp.
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Active High On/Off Control
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2.7 to 6.0 V Supply Range
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Miniature Package (SOT-23L-6)
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Minimum External Parts Count
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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
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Pentium Processor Temperature Monitor
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Power Supply Overtemperature Protection
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Copy Machine Overtemperature Protection
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System Overtemperature Protection
DESCRIPTION
The TK11051 is an accurate temperature controller IC for
use over the -30 to +105
擄C
temperature range. The
TK11051 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 TK11051 is available in a miniature SOT-23L-6 surface
mount package.
TK11051
VCC
01S
COMP OUT
VCONT
VREF
GND
COMP IN
BLOCK DIAGRAM
ORDERING INFORMATION
TK11051MTL
Tape/Reel Code
VCONT
ON/OFF
CIRCUIT
VCC
VPTAT
TEMPERATURE
SENSOR
VREF
VOLTAGE
REFERENCE
COMP OUT
+
TAPE/REEL CODE
TL: Tape Left
COMP IN
-
GND
January 1999 TOKO, Inc.
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