PRODUCT BRIEF TYRE PRESSURE SENSOR WITH ACCELEROMETER S P 1 2 is a piezoresistive pressure sensor and accelerometer designed for tyre pressure measurement applications. The design is based on proven high-volume, low cost production processes developed for products to be used in automotive applications. The SP12 is supplied in a 14 pin SOP (Small Outline Package) plastic package. The sensor design is based upon SensoNor’s proprietary and patented solutions aimed at high reliabilty measurements in harsh environments, still with a predictable and stable quality in high volume applications. The SP12 measures pressure, temperature, supply voltage and radial acceleration, and by integrating these functions with an ASIC in one package, SensoNor has developed the ideal product for tyre pressure monitoring applications, offering the system designer the flexibility to determine sequences and functionality according to his customers demands. Pressure sensor: Range: 100 to 450kPa Temperature sensor: Range: -40 to +125°C Supply Voltage sensor: Range: 1.8 to 3.6V Acceleration sensor: Range: -12 to 115g SP12 sˆ”™•n•˜ An Infineon Technologies Company Fu t u r e Te c h n o l o g y To d a y. PRODUCT BRIEF PRESSURE MEASUREMENTS All specification limits to be understood as 4 sigma values. The specified values reflect the situation with an ideal voltage source (0 ohm internal resistance) PARAMETER Input range Resolution Measurement error Measurement time SPECIFICATION AMBIENT CONDITION Unit Min Typ Max Temperature [° C] kPa kPa/lsb kPa kPa kPa kPa kPa kPa kPa kPa ms 100 -1.37 450 -40 to 125 -40 to 125 0 to 50 0 to 50 -20 to 70 -20 to 70 -40 to 100 -40 to 100 100 to 125 100 to 125 -8.5 -20 -10 -25 -17 -30 -25 -40 PACKAGE T YPE 6 8.5 20 10 25 17 30 25 40 6 Pressure [kPa] 100 100 200 100 200 100 200 100 200 100 - 450 450 400 450 400 450 400 450 400 450 Supply voltage [ V ] 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 - 3.6 3.6 3.6 3.6 3.6 3.6 3.6 3.6 3.6 3.6 TEMPERATURE MEASUREMENTS All specification limits to be understood as 5 sigma values PARAMETER Input range Resolution Deviation from actual temperature Measurement time SPECIFICATION AMBIENT CONDITION Unit Min Typ Max Temperature [° C] °C ° C/lsb °C °C °C °C °C ms -40 -1 125 -40 to 125 -40 to 125 0 to 50 -40 to 100 +100 to 125 0 to 50 -40 to 125 4 5 8 7 10 1.5 -4 -5 -8 -7 -10 Supply voltage [ V ] 2.1 2.1 2.5 2.5 2.5 2.1 2.1 - 3.6 3.6 3.6 3.6 3.6 2.5 2.5 YYWWXXX ZZZZ NNNNN ACCELEROMETER MEASUREMENTS All specification limits to be understood as 4 sigma values. The specified values reflect the situation with an ideal voltage source (0 ohm internal resistance) PARAMETER SPECIFICATION Unit Input range Resolution Sensitivity accuracy Offset Random error (inc. quant. error, noise, repeatability) Measurement time Min g -12 g/lsb % -18.75 % -24 g -6 g -8.75 g -12 g -2 g -4 ms AMBIENT CONDITION Max Typ 115 0.5 18.75 24 6 8.75 12 2 4 6 Temperature [° C] -40 to 90 -40 to 90 -40 to 90 90 to 125 25 -40 to 90 90 to 125 -40 to 90 90 to 125 Supply voltage [ V ] 2.1 2.1 2.1 2.1 2.1 2.1 2.1 to to to to to to to 3.6 3.6 3.6 3.6 3.6 3.6 3.6 SUPPLY VOLTAGE MEASUREMENTS All specification limits to be understood as 4 sigma values PARAMETER Input range Resolution Measurement error Delay time between supply voltage measurement command and sampling Delay time between sampling and A/D conversion Measurement time SPECIFICATION Unit Min V 1.8 V/lsb V -0.1 ms 2.8 ms ms 8 Typ 0.0184 AMBIENT CONDITION Max 3.6 0.1 Temperature [° C] -40 to 125 -40 to 125 -40 to 125 Supply voltage [ V ] 1.8 - 3.6 2.1 - 3.6 2.1 - 3.6 3.5 4.2 -40 to 125 2.1 - 3.6 10 12 17 -40 to 125 2.1 - 3.6 ABSOLUTE MAXIMUM RATINGS Prolonged exposure to values between recommended operating conditions and absolute maximum ratings might affect the per formance or reliability of the device PARAMETER Input pressure Storage temperature Temperature in application Temperature, transient Supply voltage Input voltage, any pin Latch-up protection ESD protection (machine model) ESD protection (human body model) Mechanical shock Static acceleration How to reach us: Phone: +47 33 03 50 00 Fax: +47 33 03 50 05 www.sensonor.com [email protected] Published by SensoNor AS Knudsrødveien 7 P.O.Box 196 N.3192 Horten Norway © SensoNor AS 2003. All Rights Reserved October 2003, 1000 ex. MIN -40 -40 -40 -0.3 -0.3 -100 -200 -2 MAX 1400 150 150 175 6.0 VDD + 0.3 100 200 2 2000 2000 UNIT kPa °C °C °C V V mA V kV g g Attention please! The information herein is given to describe certain components and shall not be considered as a guarantee of characteristics. Terms of delivery and rights to technical change reserved. We hereby disclaim any and all warranties, including but not limited to warranties of non-infringement, regarding circuits descriptions and charts stated herein. Information For further information on technology, delivery terms and conditions and prices please contact SensoNor AS