SP12T
SP12T is TYRE PRESSURE SENSOR FOR HEAVY VEHICLES manufactured by Infineon.
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 Senso Nor’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, Senso Nor 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 1400k Pa -40 to +125°C 1.8 to 3.6V
SP12T sˆ”™- n- ˜
An Infineon Technologies pany
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 [k Pa] -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 k Pa k Pa/lsb k Pa k Pa k Pa 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 ]...