MCP9903T-2E/9Q

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Temperature Sensors are highly sensitive devices used to measure temperatures accurately. Temperature Sensors can be found in various applications, ranging from industrial processes to consumer products. The MCP9903T-2E/9Q is a Temperature Sensor manufactured by Microchip that is especially designed for the automotive industry. This Temperature Sensor provides a reliable temperature measurement for automotive applications with its construction robust enough to withstand long-term exposure to harsh environment conditions.

The MCP9903T-2E/9Q operates on a wide operating voltage range of 3.3V to 5.5V and is highly durable and tolerant to long-term use in harsh environments. It has a programmable industrial temperature range of -40C to +85C, making it suitable for most temperature range applications. The MCP9903T-2E/9Q offers precise digital and analog output for a wide range of temperature sensing applications. It features both a digital and analog output, with a low power consumption. Additionally, it includes a self-diag feature that helps detect faulty operation before or after it is powered up.

The application of the MCP9903T-2E/9Q includes automotive in-cabin, underhood, and HVAC (Heating, Ventilation, and Air Conditioning) systems. The robust construction of this Temperature Sensor makes it suitable for these HVAC applications since it can withstand long-term exposure to harsh environment conditions. Other potential applications include home automation, handheld electronics, and industrial applications.

The working principle of MCP9903T-2E/9Q is based on the use of two temperature sensing elements called thermistors. Thermistors are devices which have a thermally sensitive electrical resistance which is related to the temperature. The MCP9903T-2E/9Q includes two thermistors, one of which is used as a temperature sense element and the other as a temperature reference. The thermistor connected to the sense element is connected to the device’s positive and negative terminals. As the temperature changes, a voltage is generated across the thermistor which is proportional to the temperature. This generated voltage is then amplified and converted to a digital signal via a conversion circuit.

The MCP9903T-2E/9Q is ideal for use in temperature sensing applications due to its robust construction, precise digital and analog output, and low power consumption. It is suitable for use in a wide range of temperature sensing applications, including automotive in-cabin, underhood, and HVAC systems, as well as home automation and handheld electronics.

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