TMP75 온도 센서
(THERMO 22 CLICK)
개요
- 본 제품은 TMP75 온도 센서 입니다.
- TMP75C 기반의 제품으로 12비트 ADC 내장 및 I2C 인터페이스를 가지고 있습니다.
- 높은 정확도와 온도 분해능을 가진 제품입니다.
- 3.3V 시스템과 사용이 가능합니다.
특징
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HOW DOES IT WORK?
Thermo 22 Click as its foundation uses the TMP75C, a digital temperature sensor optimal for thermal management and thermal protection applications from Texas Instruments. This temperature sensor is characterized by high accuracy; temperature range of 0°C to +70°C provides typical ±0.25°C accuracy. The temperature sensing device for the TMP75C is the chip itself. A bipolar junction transistor inside the chip is used in a band-gap configuration to produce a voltage proportional to the chip temperature. The voltage is digitized and converted to a 12-bit temperature result in degrees Celsius, with a resolution of 0.0625°C.
The default operational mode of the TMP75C is Continuous-Conversion mode (CC), where the ADC performs continuous temperature conversions and stores each result to the temperature register, overwriting the result from the previous conversion. After the Power-Up cycle, the TMP75C immediately starts a conversion. Alongside CC mode, it also has Shutdown and One-shot modes, which reduces power consumption in the TMP75C when continuous temperature monitoring is not required, typically less than 0.3μA.
Thermo 22 Click communicates with MCU using the standard I2C 2-Wire interface to read data and configure settings. Besides, it also allows the choice of the least significant bit of its I2C slave address by positioning the SMD jumpers labeled as ADDR SEL to an appropriate position marked as 0 and 1. This way, the TMP75C provides the opportunity of the eight possible different I2C addresses by positioning the SMD jumper to an appropriate position. In addition to I2C communication, it also uses an interrupt pin routed to the INT pin of the mikroBUS™ socket, representing the programmable temperature limit feature and alert that allows the sensor to operate as a stand-alone thermostat or an overtemperature alarm for system shutdown.
This Click board™ can be operated only with a 3.3V logic voltage level. The board must perform appropriate logic voltage level conversion before using MCUs with different logic levels. However, the Click board™ comes equipped with a library containing functions and an example code that can be used, as a reference, for further development.
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Type Temperature & humidity Applications Can be used for thermal management and protection of various consumer, industrial, and environmental applications On-board modules TMP75C - digital temperature sensor from Texas Instruments Key Features Low power consumption, high precision, overtemperature alert with programmable trip values, shutdown and one-shot mode, high accuracy, and more Interface I2C Compatibility mikroBUS Click board size S (28.6 x 25.4 mm) Input Voltage 3.3V