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STCN75DS2F Datasheet(PDF) 11 Page - STMicroelectronics |
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STCN75DS2F Datasheet(HTML) 11 Page - STMicroelectronics |
11 / 35 page STCN75 Operation 11/35 2.1 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 VDD is recommended. The sensing device of STCN75 is the chip itself. The typical interface connection for this type of digital sensor is shown in Figure 4 on page 11. Intended Applications include: ● System thermal management ● Computers/disk drivers ● Electronics/test equipment ● Power supply modules ● Consumer products ● Battery management ● FAX/printers management ● Automotive Figure 4. Typical 2-wire interface connections diagram 1. SDA and OS/INT are open drain. 2.2 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. AI12200 Pull-up VDD O.S./INT (1) VDD VDD Master Device 0.1 μF STCN75 SCL GND SDA (1) Pull-up VDD 10k Ω 10k Ω 10k Ω A0 A1 A2 I 2 C Address = 1001000 (1001A2A1A0) |
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