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| PRODUCT BRIEF T Y RE PRE SSU RE SE NSOR FOR HEAVY VEHICLES SP12T is a piezoresistive pressure sensor designed for tyre pressure measurement in heavy vehicle applications. The design is based on proven high-volume, low cost production processes developed for products to be used in automotive applications. 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 SP12T measures pressure, temperature and supply voltage, 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. Pressure sensor: Temperature sensor: Supply Voltage sensor: Range: Range: Range: 50 to 1400kPa -40 to +125C 1.8 to 3.6V SP12T s"TM*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 5 sigma values. The specified values reflect the situation with an ideal voltage source (0 ohm internal resistance) PACKAGE T YPE 1 PARAMETER Unit Input range Resolution Measurement error Measurement time SPECIFICATION Min 50 -28 -48 -68 Typ AMBIENT CONDITION Supply voltage [ V ] 2.1 2.1 2.1 2.1 2.1 3.6 3.6 3.6 3.6 3.6 Max Temperature [ C] Pressure [kPa] -40 to 125 -40 to 125 0 to 50 -20 to 70 -40 to 125 50 50 50 50 50 1400 1400 1400 1400 1400 kPa kPa/lsb kPa kPa kPa ms -- 1400 2.97 28 48 68 6 TEMPERATURE MEASUREMENTS All specification limits to be understood as 5 sigma values PARAMETER Unit Input range Resolution Deviation from actual temperature C C/lsb C C C C C ms SPECIFICATION Min -40 1 -4 -5 -8 -7 -10 4 5 8 7 10 1.5 Typ Max 125 AMBIENT CONDITION Temperature [ C] -40 to 125 -40 to 125 0 to 50 -40 to 100 100 to 125 0 to 50 -40 to 125 Supply voltage [ V ] 2.1 2.1 2.1 2.1 2.1 2.1 3.6 3.6 3.6 3.6 3.6 3.6 Measurement time SUPPLY VOLTAGE MEASUREMENTS All specification limits to be understood as 5 sigma values YYWWXXX AMBIENT CONDITION Temperature [ C] -40 to 125 -40 to 125 -40 to 125 -40 to 125 -40 to 125 Supply voltage [ V ] 1.8 - 3.6 2.1 - 3.6 2.1 - 3.6 2.1 - 3.6 2.1 - 3.6 PARAMETER SPECIFICATION Min 1.8 -0.1 2.8 8 3.5 10 Typ 0.0184 0.1 4.2 12 17 Max 3.6 Unit Input range V Resolution V/lsb Measurement error V Delay time between supply voltage measurement command and sampling ms Delay time between sampling and A/D conversion ms Supply measurement time ms ZZZZZ NNNNN 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 A PARAMETER Input pressure Storage temperature Temperature in application Temperature in application, transient Supply voltage Input voltage, any pin Latch-up protection ESD protection (machine model) ESD protection (human body model) Mechanical shock Static acceleration MIN -40 -40 -40 -0.3 -0.3 -100 -200 -2 MAX 3300 150 150 175 6.0 VDD +0.3 100 200 2 2000 2000 UNIT kPa C C C V V mA VkV g g A How to reach us: Phone: +47 33 03 50 00 Fax: +47 33 03 50 05 www.sensonor.com marketing@sensonor.no Published by SensoNor AS Knudsrodveien 7 P.O.Box 196 N.3192 Horten Norway (c) SensoNor AS 2003. All Rights Reserved October 2003, 1000 ex. 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 |
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