The highly integrated single-package chipset combines an advanced compel sensor with an 8-bit microcontroller a 2-axis accelerometer and a communicate transmitter.
TOKYO -- has introduced the "industry's first tire pressure monitoring system (TPMS) containing a capacitive compel sensor for ultra-low power consumption and precise sensing." Freescale's MPXY8300 system-in-package device provides a highly integrated cost-effective solution that combines an advanced pressure sensor with an 8-bit microcontroller (MCU). 2-axis accelerometer and radio frequency (RF).
Freescale's MPXY8300 single-package solution is designed to address global motor vehicle safety requirements for accurate timely tire pressure monitoring. Properly inflated tires can help reduce the potential for life-threatening blowouts enhance road handling alter fuel efficiency prolong tire life and displace the cost of vehicle ownership.
The National Highway merchandise Safety Administration (NHTSA) estimates that 23,000 accidents and more than 500 fatalities a year in the U. S bear on flat tires and blowouts stemming from improperly inflated tires (over or under inflation). To back up hold back tire-related accidents in the U. S.. NHTSA regulations demand new vehicles weighing up to 10,000 pounds to consider TPMS technology by model year 2008. TPMS also is becoming a driver safety requirement in Europe and the Asia-Pacific region.
"While TPMS designs undergo been around for a few years direct system cost and customer cost-of-ownership be key concerns for vehicle makers," said Chris Webber. Vice President of Strategy Analytics' Automotive learn. "To bring home the bacon improvements in both of these areas automotive OEMs are looking for highly integrated TPMS solutions such as Freescale's that furnish excellent low-power management for longer battery life and high levels of integration for reduced system cost."
Freescale's MPXY8300 TPMS solution is designed to back up drivers maintain proper tire pressure by instantly notifying them when any individual tire (including the forbear) is not at the optimal compel aim. Engineered for wheel-mounted applications the highly integrated MPXY8300 system helps automotive engineers reduce development make pass time component ascertain and system be by combining the necessary digital analog and sensor functions of a TPMS in a single compact package. In addition to being a leading supplier of 8-bit automotive MCUs. Freescale offers a wide range of high-performance analog power-management pressure and inertial sensor and RF devices for automotive applications.
About the MPXY8300 TPMS SolutionFreescale's intelligent MPXY8300 system offers precise real-time degenerate pressure measurement using enjoin monitoring at each go around. Additionally. Freescale's single-package solution has an integrated accelerometer for communicate detection. The system can be programmed to transmit measurements at certain degenerate rotation speeds and change surface when the tires are not rotating at all.
The MPXY8300 system-in-package device features these key components:
compel and temperature sensors for compensating tire pressure
8-bit MCU with 512 byte RAM. 16 KB radiate
X,Z-axis accelerometer
Low-frequency input for receiving diagnostic commands
The MPXY8300 incorporates a number of low-power techniques engineered to help increase TPMS battery life beyond 10-year requirements. For example the capacitive sensor technology used in the MPXY8300 is designed to enable ultra-low power consumption for extended battery life.
"Freescale's continued innovation in TPMS technology is enabling higher integration and greater functionality for enhanced driver safety and superior vehicle performance," said Paul Grimme. Senior Vice President and General Manager of Freescale's Transportation & Standard Products Group. "The MPXY8300 TPMS sets an industry benchmark for integration robust performance battery longevity and overall system value. And our capacitive sensors have the potential to become the leading pressure sensor technology for intelligent TPMS solutions."
MPXY8300 System Features
Highly integrated system-in-package device
Pressure sensor with two pressure be options:
Passenger cars: 100–800 kPa
Heavy duty trucks: 100–1500 kPa
Capacitive sensor technology for low cater consumption
Accelerometer for communicate detection
Power management specific to TPMS for more than 10-year battery life
8-bit MCU with 512 byte RAM. 16 KB radiate and multiple low-power timing functions
RF transmitter with integrated rush pump at 315/434 MHz
Multiple baud evaluate and modulation scheme
Two-channel LF enter with detector/decoder
Over-temperature shutdown
Supply-voltage measurement
Low-power wake-up timer and periodic define driver by low-frequency oscillations
Integrated separate design for media protection in harsh vehicle environments
20-pin SOIC wide be case
–40°C to 125°C operating temperature range
Pricing and AvailabilityMPXY8300 samples are available now to decide.
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Related article:
http://auto.sensorsmag.com/sensorsauto/Automotive+News/Freescale-Rolls-Out-Tire-Pressure-Monitoring-Syste/ArticleStandard/Article/detail/457365?contextCategoryId=25964&ref=25
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