On December 11, 2024, Tyson Delo, Belgium - Global microelectronics engineering company Melexis announced the launch of a new pressure sensor chip MLX90833, which uses innovative Triphibian technology to accurately measure the pressure of gas and liquid media in the range of 2 to 70 bar, and all functions are integrated in a compact SO16 package. The device has been calibrated before leaving the factory and can output accurate absolute pressure readings through a LIN digital interface, helping heat pump manufacturers simplify integration processes and improve production efficiency. MLX90833 Application Scenario Figure.jpg The thermal management system is becoming increasingly complex, and the demand for LIN is constantly growing With the diversification of heating and cooling modes in heat pump systems, especially in electric vehicle (EV) heat pump systems, the demand for independent sensor chips with digital interfaces is increasing. Heat pump systems typically include key components such as intelligent expansion valves, refrigerant pumps, and compressors, which require effective communication with a central control unit to precisely control temperature. The application of digital bus technologies such as LIN can reduce the complexity of wiring, improve the level of system intelligence, and achieve advanced diagnostic functions. LIN is becoming increasingly widely used in Europe and is rapidly replacing traditional analog sensor outputs. Simplify system design using Triphibian technology In the heat pump system of a pure electric vehicle (BEV), five or more pressure and temperature sensor chips may be required to ensure excellent performance. These sensor chips play a crucial role in regulating various expansion valves within high-pressure electric compressors and control systems. The MLX90833 integrates a LIN interface, which simplifies data transmission and system design compared to traditional analog or SENT connections. In addition, all Triphibian products from Mindray are calibrated before leaving the factory, which helps customers significantly shorten research and development time and reduce research and development complexity. If non Triphibian solutions are adopted, customers not only need to purchase separate sensing components and signal conditioning chips, but also invest in purchasing production line end calibration equipment. If MLX90833 is used, the above investment is not required and can be integrated at any time. This greatly simplifies the module design process and reduces manufacturing costs. MLX90833 Packaging Product Figure.jpg Main features of MLX90833: Expanding to a wider pressure range: MEMS sensor chips can measure pressures up to 70 bar, breaking through the measurement limitations of traditional sensor chips. Measurable gas and liquid medium pressure: It can accurately provide pressure readings for both gas and liquid media, simplifying system design. LIN digital output: supports seamless integration into bus connected systems, reducing wiring complexity. Enhanced reliability: Equipped with advanced protection mechanisms to prevent hardware damage caused by overvoltage (+40V) and reverse voltage (-40V), suitable for demanding applications such as trucks. Laurent Otte, Senior Product Line Director at Mailaixin, stated that the MLX90833 will have a disruptive impact on heat pump manufacturers. This chip can not only measure high pressures, but also accurately measure the pressure of gas and liquid media. In addition, it is equipped with a LIN interface. These characteristics work together to greatly simplify system design and improve overall efficiency MLX90833 is a fully integrated solution that includes MEMS sensors, signal conditioning circuits, and digital output drivers. It has excellent pressure measurement accuracy (± 0.5% FSO) and is an independent safety element (SEooC) developed according to the ISO 26262 standard, which can meet the strict safety requirements of modern electric vehicles. About Mailaixin Company Melexis is committed to designing, developing, and providing cutting-edge sensing and driving solutions, putting people first and caring for the earth. Our mission is to assist engineers in translating their ideas into practical applications, working together to create a safe, comfortable, and sustainable future, making beautiful visions a tangible reality. We focus on the automotive market and provide microelectronic solutions widely used in technology fields such as powertrain, thermal management, lighting, electronic braking, electronic steering, and batteries. At the same time, we actively explore emerging markets such as sustainable world, alternative mobility, robotics, and digital health, leading the trend of innovation. Since its establishment in Belgium in 1989, Mindray has grown into a multinational enterprise with over 2000 employees spread across 12 countries worldwide, providing customers with cutting-edge technical support.

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