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MPXY8040A Datasheet Tire Pressure Monitoring Sensor

Manufacturer: Freescale Semiconductor (now NXP Semiconductors)

Overview: Freescale Semiconductor Technical Data Tire Pressure Monitoring Sensor Temperature pensated and Calibrated, Fully Integrated, Digital Output The Freescale Semiconductor MPXY8000 series sensor is an 8-pin tire monitoring sensor which is prised 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 bine with a Freescale Semiconductor remote keyless entry (RKE) system to facilitate a low-cost, highly integrated system.

This datasheet includes multiple variants, all published together in a single manufacturer document.

General Description

The block diagram of the MPXY8000 series 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 onto the same die as the sensors using a standard silicon CMOS process.

The conditioning of the pressure signal begins with a capacitance to voltage conversion (C to V) followed by a switched capacitor amplifier.

Key Features

  • s latc.

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