TMP303DDRLR

Output Function:	OverTemp
Supplier Device Package:	SOT-563-6
Package / Case:	SOT-563, SOT-666
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C
Current - Supply:	4µA
Voltage - Supply:	1.4V ~ 3.6V
Features:	Selectable Hysteresis
Selectable Hysteresis:	Yes
Series:	--
Output:	Active High
Output Type:	Push-Pull
Current - Output (Max):	8mA
Accuracy:	±0.2°C
Switching Temperature:	125°C
Trip Temperature Threshold:	Hot
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

The TMP303DDRLR is a solid state temperature sensing device, which in turn is a type of thermostat. It is used predominantly for applications in temperature sensing and control, such as air conditioning, refrigerators, freezers, and industrial process control systems. This article will explore the application fields and working principle of the TMP303DDRLR.

Application Fields

The TMP303DDRLR is designed to be used in a variety of temperature sensing and control applications, such as residential and commercial air conditioning and refrigeration systems, as well as use in industrial process control systems. It is designed to provide accurate temperature readings and reliable temperature control.In residential and commercial air conditioning systems, the TMP303DDRLR can be used as part of the system to control and maintain the indoor temperature. It has a built-in temperature sensing device that allows it to accurately measure and monitor the temperature. It also has a programmable set point, allowing it to be set to a desired temperature level.In industrial process control systems, the TMP303DDRLR can be used to maintain a certain level of temperature in a given environment. This enables the system to run smoothly and efficiently. It can also detect any sudden changes in temperature and make the necessary adjustments in order to maintain the desired level.

Working Principle

The working principle of the TMP303DDRLR is based on a solid-state thermistor. A thermistor is a temperature-dependent resistor that changes its resistance in relation to the temperature. The thermistor used in the TMP303DDRLR is made of a nichrome element, which has a negative temperature coefficient (NTC). This means that the resistance of the thermistor decreases as the temperature increases.The TMP303DDRLR is made up of two components – a temperature sensing element and a thermister. The temperature sensing element is made up of the nichrome element and is connected to a voltage source to create an electrical circuit. The thermister is a variable resistor, which changes its resistance depending on the temperature.When the temperature changes, the resistance of the thermister changes as well. This in turn, changes the voltage of the electrical circuit, which is measured to determine the temperature level. The voltage level is then compared to the preset value stored in the program, which is used to determine if the temperature has reached the set point. If it has, then the system will adjust the temperature accordingly.

Conclusion

The TMP303DDRLR is a solid state temperature sensing device used in a variety of applications. It is able to accurately measure and monitor temperature levels, as well as make necessary adjustments to maintain a desired level. Its working principle is based on a thermistor, which has a negative temperature coefficient. This article has explored the application fields and working principle of the TMP303DDRLR in detail.

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