Freescale adds Xtrinsic pressure sensors for engine control
Freescale Semiconductor added three pin-for-pin compatible pressure sensor replacements for the MPXHZ6000 family to its family of Xtrinsic pressure sensors for automotive engine management and efficiency applications.
The MPXHZ9000 absolute temperature-compensated, piezoresistive pressure sensors provide the same functionality as Freescale’s other integrated pressure sensors, while adding clipping functionality and the ability to customize for multiple applications.
The MPXHZ9115A is a non-ported sensor for fuel-injected car engines, motorbike and scooter engines and comfort seating and lumbar applications. The MPXHZ9400AC and MPXHZ9250AC are ported versions with tube attachments for applications such as alternative fuel or hybrid/electric vehicles, liquid propane gas (LPG) or remote sensing.
Freescale said the MPXHZ9000 family of pressure sensors has two new distinct features—factory programmable output clipping and loss of supply/ground output diagnostics. The MPXHZ9000 family can be ordered with factory programmed ratio-metric clipping levels. In addition, these sensors are designed to detect loss of supply or loss of ground conditions and to signal the host controller with output levels outside of the normal operating range.
“These devices enable designs that contribute to more efficient engine controls for greater reliability, fuel efficiency and pollution reduction,” said Seyed Paransun, vice president and general manager of Freescale’s Sensor & Actuator Solutions Division.
The MPXHZ9000 pressure sensors use a five-volt power supply and can sense pressure ranging from 15 – 400 kPa. The sensors are available in a durable thermoplastic eight-lead surface mount package that uses the same pin-out as existing MPXHZ6000 family pressure sensors for easy pin-for-pin compatible design with no board layout change required. Freescale said customers also benefit from the two-die solution and no laser trimming, resulting in less test time. Additional products with pressure ranges from 15 to 400 kPa are planned to be added to the portfolio in the next year. Freescale has supplied barometric airflow and manifold airflow pressure sensors to reduce exhaust emissions and fuel consumption since 1982.
Pricing and availability
The MPXHZ9000 pressure sensors are sampling now, with full production planned for Q1 2013 at a suggested resale price starting at $3.50 (USD) in 10,000-piece quantities. For more information, visit http://www.freescale.com/pressure.
The Freescale Tower System is a modular development platform that helps developers quickly prototype and evaluate their applications. The Tower System pressure sensor TWRPI-MPXHZ9115 and TWRPI-MPXHZ9400 plug-in development boards are expected to be available in Q1 2013 for a suggested resale price of $75 (USD). For more information, visit www.freescale.com/towersensorpakauto.
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