Product Brief Features KP25x Integrated Pressure Sensor Digital Barometric Air Pressure Sensor IC Description The KP25x integrated pressure sensor family is a miniaturized Digital Barometric Air Pressure Sensor IC based on the capacitive principle. It is surface micromachined with a monolithic integrated fully digital signal conditioning circuit, implemented in state-of-the-art 0.5 micron BiCMOS technology. The KP25x provides an SPI interface to enable direct microcontroller connections with a minimum bill of materials. The KP25x is individually calibrated and temperature compensated, reducing software complexity by providing a direct readout of pressure and temperature. KP25x provides a fast startup time of less than 10 ms, high accuracy of up to 1 kPa and different sensitivities. Combined with the wide operating temperature range of -40 to 125 C°, high ESD robustness, and excellent EMC performance, the KP25x is perfectly suited to the harsh environmental conditions prevalent in automotive and industrial applications. KP25x Application Circuit High accuracy pressure sensing up to +/- 1.0 kPa Integrated temperature sensor Pressure ranges 40-115 kPa and 60165 kPa Wide operating temperature range -40 to 125 C° Digital SPI interface Up to 12 bit pressure and temperature resolution Calibrated and compensated Self-diagnosis features Fast startup time of less than 10 ms „Green“ 8 pin SMD housing Typical Applications Automotive Engine Management Small Engine Management Industrial Control Altimeter Weather Station Medical www.infineon.com/pressure Product Brief KP25x Integrated Pressure Sensor Digital Barometric Air Pressure Sensor IC KP25x Block Diagram INFINEON TECHNOLOGIES offers an extensive product portfolio for gasoline and diesel engine management systems and industrial control applications. Our products range from micromachined sensors, microcontrollers, and smart power ICs to voltage regulators and other standard components. The KP25x is a digital integrated pressure sensor for barometric pressure management, and provides benchmark performance in terms of reliability, accuracy, and ease-ofuse. Parameter KP253 KP254 KP256 Unit Pressure range 60.0 - 165.0 40.0 - 115.0 60.0 - 165.0 kPa Accuracy +/- 1.0 +/- 1.5 +/- 1.0 kPa Output Format Digital SPI Digital SPI Digital SPI Resolution 12 10 10 bits Sensitivity 39 13.6 9.8 LSB/kPa Supply Voltage 3.3 - 5.0 3.3 - 5.0 3.3 - 5.0 V Order Code SP000843708 SP000773948 SP000773952 Published by Infineon Technologies AG 85579 Neubiberg, Germany © 2011 Infineon Technologies AG. All Rights Reserved. Visit us: www.infineon.com Order Number: B142-H9647-X-X-7600 Date: 10 / 2011 Attention please! The information given in this document shall in no event be regarded as a guarantee of conditions or characteristics (“Beschaffenheitsgarantie”). With respect to any examples or hints given herein, any typical values stated herein and/ or any information regarding the application of the device, Infineon Technologies hereby disclaims any and all warranties and liabilities of any kind, including without limitation warranties of non-infringement of intellectual property rights of any third party. Information For further information on technology, delivery terms and conditions and prices please contact your nearest Infineon Technologies Office (www.infineon.com). Warnings Due to technical requirements components may contain dangerous substances. For information on the types in question please contact your nearest Infineon Technologies Office. Infineon Technologies Components may only be used in life-support devices or systems with the express written approval of Infineon Technologies, if a failure of such components can reasonably be expected to cause the failure of that life-support device or system, or to affect the safety or effectiveness of that device or system. Life support devices or systems are intended to be implanted in the human body, or to support and/or maintain and sustain and/or protect human life. If they fail, it is reasonable to assume that the health of the user or other persons may be endangered.