The SP49 TPMS sensor measures wheel pressure, radial acceleration, temperature, and supply voltage. It also comes with a pressure-auto-ranging feature, which provides pressure accuracy between the range of 100 to 1,400 kilopascals (kPa). This amount of measurement adjustability makes the SP49 a good choice for any kind of vehicle, from passenger vehicles to heavy-duty trucks and other commercial applications.
The tire pressure sensors perform all of the functions necessary to implement a complete module for a TPMS. It’s capable of intelligent tire functions such as on-tire auto-position sensing, tire inflation assistance, tire blowout detection, and load detection.
What Differentiates the SP49 Sensor?
Optimized for battery-powered apps, the SP49 features flexible wake-up, power management, and low power-down current. Its range of supply voltage ensures long-lasting battery lifetime (typical TPMS apps last 10 years with a CR2032 battery). Generating a wake-up from the integrated interval timer, the SP49 is well-suited for standalone remote pressure sensing that demands low charge consumption. It features wake-up capability and what’s said to be best-in-class sensitivity for on-demand measurements.
The device measures pressure in the range from 100 to 920 kPa, acceleration, as well as temperature and supply voltage. An integrated LF receiver and RF transmitter allows for wireless communication. For wired data transfer, the hardware master/slave I2C interface can be used. Further wired interfaces such as UART, SPI, or PWM can be realized in software.
The SP49 is a pin-to-pin replacement for Infineon's last-generation SP40 TPMS products. With its hardware master/slave I²C interface and software-simulated interfaces, the SP49 is best for sub-1-GHz and scalable for BLE TPMS. Available at ASIL A, the sensor offers a high level of integration and is optimized to perform all functions required to implement a modern TPMS module.
The XENSIV SP49 tire pressure sensor can be ordered now.
