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Infineon Introduces XENSIV Tire Pressure Sensor for Smart Tire Pressure Monitoring Systems

Update time : 2023-10-19 11:02:25

Infineon Technologies AG combines its proven expertise in the automotive sector with its patented glass-silicon-glass MEMS silicon sensor for the automotive tire pressure monitoring system (TPMS) market to introduce the XENSIV ™ SP49 tire pressure monitoring sensor.

The sensor integrates MEMS sensors and ASICs to provide the smart tire functions required by advanced tire pressure monitoring systems. The XENSIV ™ SP49 tire pressure monitoring sensor uses a powerful 32-bit Arm ® M0 + core, large-capacity flash memory and RAM, and has low power consumption monitoring (LPM) and more optimized fast acceleration sensing functions. It is suitable for intelligent tire functions such as automatic tire position detection, tire inflation assist, tire blowout detection, and load detection.
The SP49 is Infineon's previous generation SP40 TPMS. It is pin-to-pin compatible with the SP40. It is equipped with hardware master/slave I ² C interface and software analog UART, SPI and PWM interface. It is suitable for frequencies below 1 GHz and can be extended for BLE TPMS. This ASIL-A-class sensor is highly integrated and optimized with all the functions required for modern TPMS modules.
The SP49 integrates a microcontroller, sensor and convenient peripherals, so only a few passive components are required to form a complete TPMS sensor unit. The semiconductor device features a low power design, making it ideal for battery-powered applications. In addition to enabling wake-up function with an internally integrated interval timer, the SP49 sensor is suitable for stand-alone remote pressure sensing solutions that require low power consumption. In these applications, this low-frequency receiver with wake-up function and best-in-class sensitivity enables on-demand measurements.

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