stcn75 STMicroelectronics, stcn75 Datasheet - Page 11

• Manufacturer Part Number: stcn75
• Description: Digital Temperature Sensor And Thermal Watchdog
• Manufacturer: STMicroelectronics

2.1
2.2
Applications information
STCN75 digital Temperature Sensors are optimal for thermal management and thermal
protection applications. They require no external components for operations except for pull-
up resistors on SCL, SDA, and OS/INT outputs. A 0.1µF bypass capacitor on V
recommended. The sensing device of STCN75 is the chip itself. The typical interface
connection for this type of digital sensor is shown in
Intended Applications include:
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Figure 4.
1. SDA and OS/INT are open drain.
Thermal alarm function
The STCN75 thermal alarm function provides user-programmable thermostat capability and
allows the STCN75 to function as a standalone thermostat without using the serial interface.
The OS/INT output is the alarm output. This signal is an open drain output, and at power-up,
this pin is configured with active-low polarity by default.
System thermal management
Computers/disk drivers
Electronics/test equipment
Power supply modules
Consumer products
Battery management
FAX/printers management
Automotive
10kΩ
Typical 2-wire interface connections diagram
Pull-up
V DD
O.S./INT
A 0
A 1
A 2
STCN75
(1)
SDA
GND
V DD
SCL
(1)
0.1μF
V DD
10kΩ
I
2
C Address = 1001000 (1001A 2 A 1 A 0 )
Pull-up
Figure 4 on page
V DD
10kΩ
11.
Master
Device
AI12200
DD
is
11/35