Datasheet

LM75
Digital Temperature Sensor and Thermal
Watchdog with 2-Wire Interface
______________________________________________________________________________________ 11
3V to
5.5V
+V
S
OS
A0
A1
A2
SCL
SDA
GND
or +V
TO
Microcontroller
SCL
SDA
OS
LM75
R1
10kΩ
R2
10kΩ
R3
10kΩ
GND
Figure 7. I
2
C Controlled Temperature Sensor
3V to
5.5V
+V
s
OS
LM75
R2
10kΩ
R3
10kΩ
GND
12V
N-CHANNEL MOSFET
12V 300mA
FAN MOTOR
Figure 8. Fan Control
Figure 9. Temperature Sensor with Audible Alarm
3V to
5.5V
OS
+V
s
MAX4364
R2
10kΩ
R3
10kΩ
R4
10kΩ
R1
10kΩ
GND
LM75
C1
0.1μF
C2
0.1μF
C4
6.8nF
C5
6.8nF
C3
6.8nF
R5
200kΩ
SHDN
BIAS
IN+
IN-
OUT-
GND
V
CC
OUT+