TMP709AQDBVRQ1 Allicdata Electronics

TMP709AQDBVRQ1 Sensors, Transducers

Allicdata Part #:

296-45394-2-ND

Manufacturer Part#:

TMP709AQDBVRQ1

Price: $ 0.00
Product Category:

Sensors, Transducers

Manufacturer: Texas Instruments
Short Description: TEMPERATURE SENSOR SWITCH
More Detail: Thermostat Programmable Active Low Open Drain SOT-...
DataSheet: TMP709AQDBVRQ1 datasheetTMP709AQDBVRQ1 Datasheet/PDF
Quantity: 1000
Stock 1000Can Ship Immediately
Specifications
Series: Automotive, AEC-Q100
Packaging: Tape & Reel (TR) 
Part Status: Active
Trip Temperature Threshold: Hot
Switching Temperature: Programmable
Accuracy: ±3°C
Current - Output (Max): 20mA
Output Type: Open Drain
Output: Active Low
Output Function: /OverTemp
Selectable Hysteresis: Yes
Features: Selectable Trip Point
Voltage - Supply: 2.7V ~ 5.5V
Current - Supply: 40µA
Operating Temperature: -40°C ~ 125°C
Mounting Type: Surface Mount
Package / Case: SC-74A, SOT-753
Supplier Device Package: SOT-23-5
Description

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The TMP709AQDBVRQ1 is a temperature sensor equipped with a thermostat mechanism. It is part of the category of solid state temperature sensors that utilize a thermistor to determine temperatures. The device employs a transducer to convert the difference in temperature to an electrical signal that can be read by computers, controllers, and other electronic devices.

Application

TMP709AQDBVRQ1 is designed particularly for applications that require temperature regulation and have limited power consumption. These include digital infrared thermometers, infant incubators, home appliances, portable medical devices, and industrial process control devices. Additionally, it can be used in aviation, medical, and automotive systems to provide reliable, real time temperature monitoring and adjustment.

Working Principle

TMP709AQDBVRQ1 utilizes a thermistor, which is a small, heat-sensing electronic device. A thermistor works by measuring the resistivity of the material when located in an area with a temperature difference. This property is called the Seebeck effect. When the temperature of the environment changes, the Seebeck effect induces a change in resistivity. This change is provided as an electrical signal from the thermistor.

The device also includes a built-in thermostat, which regulates the temperature. The thermostat is set to a pre-determined temperature, and the electrical signal generated by the thermistor is compared to the set value. If the temperature rises, the circuit response is to switch off the power supply to prevent the environment from overheating. Conversely, if the temperature drops below the set point, the power supply is turned on again to bring the temperature back to the set point.

Conclusion

The TMP709AQDBVRQ1 is an advanced temperature sensor that utilizes a thermistor and a thermostat to accurately regulate temperature within a wide temperature range. It is used in a variety of applications, including digital infrared thermometers, infant incubators, home appliances, portable medical devices, and industrial process control. The device\'s temperature regulation feature makes it a highly reliable choice for temperature sensitive applications.

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

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