MAX6517UKP055+

Output Function:	OverTemp, UnderTemp
Supplier Device Package:	SOT-23-5
Package / Case:	SC-74A, SOT-753
Mounting Type:	Surface Mount
Operating Temperature:	-55°C ~ 125°C
Current - Supply:	40µA
Voltage - Supply:	2.7V ~ 5.5V
Features:	Selectable Hysteresis
Selectable Hysteresis:	Yes
Series:	--
Output:	Active High
Output Type:	Open Drain, Push-Pull
Current - Output (Max):	--
Accuracy:	±0.5°C
Switching Temperature:	Programmable
Trip Temperature Threshold:	Cold, Hot
Part Status:	Active
Packaging:	Cut Strip

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Introduction

Temperature sensors are ubiquitous in many aspects of the physical world, ranging from basic thermometers to more complex sensing applications that require an accurate and reliable measure of temperature. Thermostats are one of the most common applications, used to sense the temperature of an environment and adjust heating or cooling based on predefined limits. For more complex sensing applications, solid state temperature sensors are often used. This article will focus on the MAX6517UKP055+ temperature sensor, one of the most reliable and accurate thermistors on the market. We will discuss its application field, as well as its underlying working principle, to demonstrate how it sets itself apart from many other temperature sensors currently available.

Application Field

The MAX6517UKP055+ is designed for a number of applications, from industrial to consumer. One application where it is especially popular is high temperature limit control, as it can accurately and precisely measure temperatures up to 150°C. It may also be used to provide temperature measurement for automobiles or for air conditioning systems, as the predetermined temperature sets can be easily adjusted to provide optimal comfort. In addition to its robust temperature sensing capabilities, the MAX6517UKP055+ is also designed to be resistant to vibration and shock, so it\'s an excellent choice for hostile environments.

Working Principle

The MAX6517UKP055+ employs a thermistor as its sensing element, which is a temperature-sensitive resistor. Its resistance decreases as temperature increases, making it an ideal choice for temperature sensing applications. The MAX6517UKP055+ uses a two-terminal NTC (Negative Temperature Coefficient) thermistor, with a nominal resistance of 10KΩ. When the thermistor is exposed to increasing temperatures, its resistance decreases, allowing a higher current to flow through it.The MAX6517UKP055+ utilizes a comparator circuit which compares the internal voltage to an external reference voltage. When the resistance of the thermistor is too low, the current will exceed the reference voltage, thus activating the comparator circuit. This triggers the relay, which allows for control of the external system through the activation of a heating or cooling element. This makes the MAX6517UKP055+ a versatile temperature sensing device, capable of controlling the temperature of many different types of environments.

Conclusion

The MAX6517UKP055+ is a solid state temperature sensor that is perfect for applications requiring precise temperature sensing. It utilizes a thermistor, which is a temperature-sensitive resistor, and its precise comparator circuit allows it to accurately and reliably measure and control temperatures up to 150°C. The MAX6517UKP055+ is resistant to vibration and shock and is an ideal choice for both industrial and consumer temperature sensing applications.

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