New Products
Dual magnetic sensor tackles safety-critical engine throttle applications
In cars, there are many applications where a a mechanical angle needs to be measured. NXP addresses this task with its new dual magnetic sensor KMA220. Integrating two sensor systems in a single package, it is particularly relevant for throttle control applications where a redundant system solution is required. The device operates in a simple disk magnet configuration with no need for a PCB or external components.
The KMA220 is calibrated and ready to use and incorporates three capacitors in addition to two sensors dies and two signal conditioning ASICs. This, combined with its dual nature, reduces system cost for customers and simplifies the assembly process. To achieve redundancy in throttle applications, car manufacturers have previously had to install two single sensors on a leadframe or onto a PCB, bending them to fit ─ typically requiring an expensive ring magnet configuration to operate. With the dual KMA220 sensor, only one simple installation is required.
The KMA220 uses NXP's proprietary ABCD9 technology, an automotive platform at the cutting edge of analog mixed-signal integration. This technology is based on NXP's CMOS 14 process and significantly improves performance compared to previous sensor products with integrated ASICs. The KMA220 is also qualified according to the new HMM (Human Metal Model) with high electrostatic discharge (ESD) protection and EMC performance.
The KMA220 is an addition to NXP's family of position sensors for automotive applications in a unique package. As a next step, the vendor plan to release a single sensor product in the same package which means that customers will be able to use the same assembly process for all applications, making it easy for them to choose and install the right solution for their products.”
NXP's automotive sensor family is exceptionally robust, capable of operating at temperatures of up to 160 degrees C, compared to the industry average of 150. This is vital for use in EGR (exhaust gas recirculation) applications, where every degree counts.
The KMX220 is available immediately; pricing starts at $3.30 for 10k quantities. For more information visit http://www.nxp.com/products/sensors/angular_sensors/KMA220.html
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