|
TOKO |
FEATURES
s Linear Output Voltage 10 mV/°C Output
s Active High On/Off Control
s 2.4 to 8.0 V Supply Range
s Miniature Package (SOT-23L)
s Minimum External Parts Count
s Low Power Consumption
TK11034
TEMPERATURE SENSOR IC
APPLICATIONS
s Home and Industrial Thermostats
s Automotive Climate Control
s Battery Charger Temperature Monitor
s Notebook Computer Temperature Monitor
s Electronic Thermometers
s Fish Finder Water Temperature
s Industrial Process Controllers
s Home Appliance Temperature Control
DESCRIPTION
The TK11034 is a temperature sensor IC with a linear
output of 10 mV/°C over the range of -30 to + 105 °C. Its
wide operating voltage range of 2.4 to 8.0 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.
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 TK11034 has a compensation pin for a 0.1 µF capacitor
that ensures stability over the IC's operating temperature
range.
The TK11034 is available in a miniature SOT-23L surface
mount package.
TK11034
VCC
01S
GND
VCONT
VOUT
GND
NC
Note: Both GND pins must connect to GND
BLOCK DIAGRAM
ORDERING INFORMATION
TK11034M
Tape/Reel Code
VCONT
VCC
ON/OFF
CIRCUIT
TEMPERATURE
DETECTION
CIRCUIT
+
-
VCC
VOUT
TAPE/REEL CODE
TL: Tape Left
GND
GND
January 1999 TOKO, Inc.
Page 1
TK11034
ABSOLUTE MAXIMUM RATINGS
Supply Voltage ......................................................... 12 V
Operating Voltage ............................................ 2.4 to 8 V
Power Dissipation (Note 1) ................................ 200 mW
Junction Temperature ........................................... 150 °C
Storage Temperature Range ................... -55 to +150 °C
Operating Temperature Range .................-30 to +105 °C
Lead Soldering Temperature (10 s) ...................... 235 °C
TK11034 ELECTRICAL CHARACTERISTICS
Test Conditions: VCC = 3.0 V, VCONT = 2.4 V, IOUT = 0 µA, TA = 25 °C, unless otherwise specified.
SYMBOL
PARAMETER
TEST CONDITIONS
MIN TYP
TA = 25 ° C
VOUT
Output Voltage
TA = 85 ° C
TA = -30 ° C
TC Temperature Coefficient TA = 25 ° C to 85 ° C
Line Reg Line Regulation
VCC = 3 to 8 V
Load Reg Load Regulation
IOUT = 0 to 400 µA
ICC Supply Current
VCONT = 2.4 V
IOUT Output Current
∆VOUT ≤ 20 mV
ICC(STBY)
Standby Supply Current VCONT ≤ 0.6 V
CONTROL TERMINAL SPECIFICATIONS
965
1573
9.5
-20
995
1613
428.5
10.3
5
3
160
VCONT(ON)
VCONT(OFF)
ICONT
Control Voltage (ON)
Control Voltage (OFF)
Control Current
VOUT = 965 to 1025 mV, Output ON
VOUT ≤ 0.1 V, Output OFF
1.8
GND
2.4
4.5
Note 1: Power dissipation is 200 mW when mounted as recommended. Derate at 1.6 mW/°C for operation above 25 °C.
MAX
1025
1653
11.1
20
20
220
400
1
VCC
0.6
7.5
UNITS
mV
mV
mV
mV/° C
mV
mV
µA
µA
µA
V
V
µA
Page 2
January 1999 TOKO, Inc.
|