TC74A4-3.3VCTTR

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Sensor Type:	Digital, Local
Sensing Temperature - Local:	-40°C ~ 125°C
Sensing Temperature - Remote:	--
Output Type:	I²C/SMBus
Voltage - Supply:	2.7 V ~ 5.5 V
Resolution:	7 b
Features:	Standby Mode
Accuracy - Highest (Lowest):	±2°C (±3°C)
Test Condition:	25°C ~ 85°C (0°C ~ 125°C)
Operating Temperature:	-40°C ~ 125°C
Mounting Type:	Surface Mount
Package / Case:	SC-74A, SOT-753
Supplier Device Package:	SOT-23-5

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Temperature Sensors - Analog and Digital Output

Temperature sensing plays an important role in many industrial applications, from HVAC (heating, ventilation, and air conditioning) to automotive and medical systems. Temperature measurement systems based on analog output temperature sensors such as the TC74A4-3.3VCTTR, are increasingly being adopted because of their accuracy, ease-of-use, and flexibility. This article will explain the application field and operating principle of the TC74A4-3.3VCTTR temperature sensor, and discuss its digital and analog output capabilities.

Application Field

The TC74A4-3.3VCTTR temperature sensor is a high-performance chip designed for ambient differences in temperature measurement. It is suitable for use in a variety of applications including automotive, medical, and consumer-level HVAC systems.The TC74A4 is a highly accurate temperature sensor capable of sensing temperature differences as small as 0.4 degrees Celsius and as large as 3.5 degrees Celsius. It is also resistant to noise and can detect temperatures as low as -40 degrees Celsius and as high as +125 degrees Celsius.The TC74A4-3.3VCTTR is also relatively easy to install and operate. It is small in size and is designed to fit in a 0.6" by 0.7" space. The temperature sensor is powered by a 3.3V battery and requires no external power supply.

Working Principle

The TC74A4-3.3VCTTR is a semiconductor temperature sensor that uses a thermistor to detect temperature. A thermistor is a type of resistor whose resistance changes with temperature. The TC74A4-3.3VCTTR contains two such thermistors connected to each other. It works by measuring the difference in resistance between the two thermistors.The TC74A4-3.3VCTTR operates on the principle of thermistor bridge. This involves measuring the voltage difference between two thermistors, which act as non-linear resistors. The exact temperature is determined by measuring the voltage across the bridge. The output voltage is proportional to the temperature difference between the two thermistors.

Digital and Analog Output

The TC74A4-3.3VCTTR temperature sensor provides both an analog and digital output. The analog output is a voltage signal that is proportional to the difference between the two thermistors. The digital output is a pulse-width modulation (PWM) signal that is proportional to the same difference between the two temperatures.The output of the TC74A4-3.3VCTTR can be configured to provide either an analog or digital signal or both. This allows the user to choose the output format that is most suitable for their application.

Conclusion

The TC74A4-3.3VCTTR temperature sensor is a reliable and accurate solution for detecting temperature differences. Its small size and ease of operation make it a suitable choice for applications ranging from automotive to medical and consumer-level HVAC systems. The temperature sensor is also able to provide both analog and digital outputs, allowing it to be configured for the application at hand.

The specific data is subject to PDF, and the above content is for reference

Part Number	Manufacturer	Price	Quantity	Description