Freescale Semiconductor has introduced the FXTH87, a tire pressure monitoring system (TPMS) family, which is the smallest integrated package TPMS solution currently available with a weight of just 0.3 grams. The family of devices is 50 percent smaller than competing products, helping designers reduce overall bill of materials costs. Freescale’s newest TPMS system-in-package solution provides low power consumption combined with high levels of functional integration in one package, featuring a dual-axis accelerometer architecture, pressure and temperature sensor, integrated MCU, RF transmitter and low frequency receiver.
With a growing number of accidents and fatalities occurring each year which involve flat tires or blowouts, the TPMS system will be able to help prevent accidents by ensuring proper tire inflation monitoring. In addition, properly inflated tires improve fuel economy and reduce emissions, resulting in many regions worldwide including the United States, European Union, China, Japan and Taiwan, to begin requiring TPMS in new vehicles. According to IHS iSuppli, TPMS will represent more than 25 percent of the total pressure measurement market for automotive sensors by 2015.
Commenting Babak Taheri, vice president and general manager for Freescale’s sensors solutions division said, “In TPMS, size and weight are critical, because the system is installed on the car’s tire. We are offering a one-of-a-kind solution that can help improve the safety and efficiency of virtually every car on the road.”
Enclosed in a 7 x 7 x 2.2 mm package, the FXTH87 family provides support for form factors ideal for tire pressure sensor module developers to reduce the weight and overall bill of materials costs. The industry’s lowest RF power consumption at 7 mA ldd significantly extends battery life. Both the single- and dual-axis accelerometer options improve accuracy and facilitate more precise tire localization implementation and universal interoperability for original equipment manufacturers and aftermarket applications. And the integrated MCU and dedicated firmware offer the largest customer flash memory at 8 KB, increasing application flexibility and reducing time to market.