TK11052 Datasheet, PDF (1/12 Pages) TOKO, Inc – THERMOSTAT IC

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
(V_CC = 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.
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