MCP9509CT-E/OT Sensors, Transducers

Output Function:	/OverTemp
Supplier Device Package:	SOT-23-5
Package / Case:	SC-74A, SOT-753
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C
Current - Supply:	30µA
Voltage - Supply:	2.7V ~ 5.5V
Features:	Selectable Trip Point
Selectable Hysteresis:	Yes
Series:	--
Output:	Active Low
Output Type:	Open Drain
Current - Output (Max):	20mA
Accuracy:	±0.5°C
Switching Temperature:	Programmable
Trip Temperature Threshold:	Cold
Part Status:	Active
Packaging:	Tape & Reel (TR)

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

Introduction

The MCP9509CT-E/OT is a very popular temperature sensor and thermostat in the solid state category. It is used in a variety of applications to detect temperatures ranging from -55°C to 125°C. It is used in applications such as HVAC, automotive, industrial and consumer temperature control, and equipment protection. In this article we will discuss the application field and working principle of the MCP9509CT-E/OT.

Application Field

The most common use for the MCP9509CT-E/OT is temperature sensing and thermostat functions in HVAC and automotive applications. The device can accurately detect temperatures from -55°C to 125°C and is very effective for temperature control and protection of electronic components and equipment from excessive heat.The MCP9509CT-E/OT is also used in consumer applications such as refrigeration, home and industrial heating and cooling, ovens, and air conditioning units. It is a very reliable device and can provide extended functionality for various applications.

Working Principle

The MCP9509CT-E/OT is a solid state device and operates using a thermistor. A thermistor is a temperature-sensitive resistor which changes its resistance value when the temperature changes. The MCP9509CT-E/OT has two thermistors, an NTC thermistor and a PTC thermistor.When the temperature rises above the set threshold, the NTC thermistor\'s resistance decreases and the voltage across it increases. This causes the set current to flow through the PTC thermistor, which reduces the resistance. This causes the voltage across the PTC thermistor to drop, thereby triggering an alarm or enabling a control circuit.The device also includes an integrated voltage regulator which helps protect it from over-voltage conditions. The device can also be used in combination with a microprocessor or microcontroler to provide precise temperature control.

Conclusion

The MCP9509CT-E/OT is a very popular temperature sensor and thermostat in the solid state category. It is used in a variety of applications to detect temperatures ranging from -55°C to 125°C. Its two thermistors and integrated voltage regulator make it an ideal choice for applications such as HVAC, automotive, industrial and consumer temperature control, and equipment protection.

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

Part Number	Manufacturer	Price	Quantity	Description