Tire Pressure Monitoring Sensor
Freescale Semiconductor Technical Data
Tire Pressure Monitoring Sensor Temperature Compensated and Calibrated, Fully Int...
Description
Freescale Semiconductor Technical Data
Tire Pressure Monitoring Sensor Temperature Compensated and Calibrated, Fully Integrated, Digital Output
The Freescale Semiconductor, Inc. MPXY8021A sensor is an 8-pin tire monitoring sensor which is comprised of a variable capacitance pressure sensing element, a temperature sensing element, and an interface circuit (with a wake-up feature) all on a single chip. It is housed in a Super-Small Outline Package (SSOP), which includes a media protection filter. Specifically designed for the low power consumption requirements of tire pressure monitoring systems, it can combine with a Freescale remote keyless entry (RKE) system to facilitate a low-cost, highly integrated system.
DETAILED DESCRIPTION
The block diagram of the MPXY8021A sensor is shown in Figure 1. The pressure sensor is a capacitive transducer constructed using surface micromachining, the temperature sensor is constructed using a diffused resistor, and the interface circuit is integrated o...
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