MIC384-2BMM-TR

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Temperature is a crucial factor in many industries that use processes that involve heat, and with technological advancements, the performance and accuracy of temperature sensors have improved greatly. The MIC384-2BMM-TR is a highly precise temperature sensor from Measurement Specialties that is commonly used in industrial and automotive applications. This article provides an overview of the device and its applications, as well as its working principle.

The MIC384-2BMM-TR is a dual-element temperature sensor designed for use in applications where highly accurate measurements of temperatures between -40 and +125°C are necessary. The device is a surface-mountable chip featuring an integrated dual temperature element made of high-stability NTC thermistors that are packaged in a hermetically sealed case. This temperature sensor provides ±0.35°C accuracy with a resolution of 0.00625°C and a linear response time of 1.4 seconds. On the other hand, the MIC384-2BMM-TR has a maximum sampling rate of 250Hz and produces an analog output voltage that ranges between 0.3 and 2.75 V.

Due to its accuracy and low power consumption, the MIC384-2BMM-TR is well-suited for automotive and industrial applications where temperatures must be monitored and controlled. The device is used in automotive safety systems such as airbag deployments, where exact temperature readings and quick response are necessary. Additionally, the sensor can be used in applications like cooling systems, power supplies, data centers, and climate control, among others. In the automotive industry, the MIC384-2BMM-TR is used in engine control, fuel control, battery temperature monitoring, and exhaust control.

Regarding its working principle, the MIC384-2BMM-TR has an integrated dual temperature element made of high-stability NTC thermistors. These thermistors, or temperature-sensing elements, are made of a metal oxides that act as semiconductors and change their electrical resistances in response to changes in temperature. The NTC thermistors in the sensor have a wide resistance range and accurate temperature coefficient that helps ensure accurate output signals. The device also features a bridge circuit with four thermistors, which helps compensate for temperature effects.

The dual-element temperature sensor also features an on-board signal conditioning circuit which helps convert the resistance signal to a linear analog voltage that can be read directly. This readability is enabled by an exponential temperature-voltage conversion characteristic that depends on temperature coefficient. Using this signal conditioning circuit, the device can accurately represent the temperatures over the whole temperature range.

The MIC384-2BMM-TR is a highly-accurate temperature sensor suited for automotive and industrial applications that require precise and linear temperature readings. Its integrated dual-element NTC thermistors have a wide resistance range and accurate temperature coefficient, and its on-board signal conditioning circuit helps convert the resistance signal to a linear voltage. This voltage is then read directly by the instrument that measures the temperature. Overall, the MIC384-2BMM-TR is a reliable and precise device suitable for a wide range of applications.

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