The MAP is an important parameter to calculate the air-fuel ratio provided to the engine. Precise measurement helps increase combustion efficiency and thus reduce harmful emissions. In addition, manifold pressure data can be used to compute diagnostics of leakages and malfunctions of the exhaust gas recirculation valve.
With an accuracy error of 0,77 percent (full scale span, FSS) over lifetime, XENSIV KP276 products are the most accurate digital Turbo MAP sensors in Infineon’s portfolio. An even more precise (0,5 percent FSS) product version is already planned. Furthermore, this version will be ISO26262 ready, providing all the analyses and documentation necessary for safety-critical applications.
XENSIV KP276 sensors integrate the signal processing for an external NTC temperature sensor. This allows to provide both the pressure and the temperature signal on only one digital interface. The devices have a SENT interface with a short frame length of 846 µs and a short NTC start-up time of typically 10 ms. This leads to a faster measurement and transmission of the data compared to previous Infineon products.
The sensors come in a robus SMD-8 package and are suitable for the harsh conditions in engine management applications. They are qualified for a temperature range from -40°C to 150°C and protected against aggressive media like iodine and exhaust gas condensate.
Availability
The XENSIV KP276 series is now available. More information is available at www.infineon.com/pressure-sensors.
