TK11070
NEGATIVE SLOPE TEMPERATURE SENSOR IC
FEATURES
■ Linear Output Voltage -8 mV/°C Output
■ Active High On/Off Control
■ 2.7 to 10.0 V Supply Range
■ Miniature Package (SOT-23-5)
■ Minimum External Parts Count
■ Low Power Consumption
DESCRIPTION
The TK11070 is a temperature sensor IC with a linear
negative slope output of -8 mV/°C over the range of -30
to + 105 °C. Its wide operating voltage range of 2.7 to
10.0 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. In the ”off” state,
the standby current is 1 µA maximum.
APPLICATIONS
■ Home and Industrial Thermostats
■ Automotive Climate Control
■ Battery Charger Temperature Monitor
■ Notebook Computer Temperature Monitor
■ Electronic Thermometers
■ Fish Finder Water Temperature
■ Industrial Process Controllers
■ Home Appliance Temperature Control
■ Liquid Crystal Panel Contrast Adjustment
TK11070
V
CC
HS
CONTROL
V
OUT
GND
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 TK11070 has a compensation pin for a 0.1 µF capacitor
that ensures stability over the IC's operating temperature
range.
The TK11070 is available in a miniature SOT-23-5 surface
mount package.
ORDERING INFORMATION
TK11070M
Tape/Reel Code
TAPE/REEL CODE
TL: Tape Left
CONTROL
GND
Note: Pin 2 must connect to GND
BLOCK DIAGRAM
ON/OFF
CIRCUIT
TEMPERATURE
DETECTION
CIRCUIT
V
CC
V
CC
+
-
V
OUT
HS
January 1999 TOKO, Inc. Page 1
TK11070
ABSOLUTE MAXIMUM RATINGS
Supply Voltage ......................................................... 12 V
Operating Voltage ....................................... 2.7 to 10.0 V
Power Dissipation (Note 1) ................................ 150 mW
Junction Temperature ........................................... 150 °C
TK11070 ELECTRICAL CHARACTERISTICS
Test Conditions: V
LOBMYSRETEMARAPSNOITIDNOCTSETNIMPYTXAMSTINU
CC =
3.0 V, V
CONT
= 2.4 V, I
= 0 µA, TA = 25 °C, unless otherwise specified.
OUT
Storage Temperature Range ................... -55 to +150 °C
Operating Temperature Range .................-30 to +105 °C
Lead Soldering Temperature (10 s) ...................... 235 °C
T
A
V
TUO
T
C
egatloVtuptuO
geReniLnoitalugeReniLV
geRdaoLnoitalugeRdaoLI
I
CC
I
TUO
I
YBTS
tnerruCylppuSV
tnerruCtuptuO
tnerruCylppuSybdnatSV
T
A
T
A
tneiciffeoCerutarepmeTT
A
CC
TUO
∆V
C°03-=044.2V
C°52-=089.1000.2020.2V
C°58=294.1025.1845.1V
C°58ot52=5.8-0.8-5.7-C°/Vm
V01ot3=4-28Vm
Aµ01±otAµ0=8-08Vm
TNOC
TUO
TNOC
V4.2=57001Aµ
≤ Vm02
001-01Aµ
≤ V6.01Aµ
SNOITACIFICEPSLANIMRETLORTNOC
I
TNOC
V
V
Note 1: Power dissipation is 150 mW when mounted as recommended. Derate at 1.2 mW/°C for operation above 25 °C.
)NO(TNOC
)FFO(TNOC
tnerruClortnoC0.25.30.6Aµ
)NO(egatloVlortnoCV
)FFO(egatloVlortnoCV
TUO
TUO
FFOtuptuO,V1.0<DNG6.0V
NOtuptuO,V20.2ot89.1=8.14.2VCCV
Page 2 January 1999 TOKO, Inc.