Infineon Technologies TLE4980C
Smart Hall Effect Sensor
APPLICATIONS
APPLICATIONS
● Camshaft position sensorFEATURES
TPO True Power On functionality● Mono-cell chopped Hall system
● TIM Twisted Independent Mounting
● Dynamic self-calibrating algorithm
● End-of-line programmable switching points
● TC of back-bias magnet programmable
● High sensitivity (B min < 1.5 mT) and high stability of the magnetic switching points
● High resistance to mechanical stress
● Digital output signal (voltage interface)
● Short-circuit protection
● Module style package with two 4.7 nF integrated capacitors
● P-SSO-3-9 T L E 4 9 8 0 C N e v e r s t o p t h i n k i n g . P R O D U C T VS OUT Overtemperature & Short-Circuit Protection Clamping B R I E F Block Diagram The IC consists of a chopped hall-probe (mono-cell in the centre of the chip) with a chopped preamplifier. Next there is a summing node for threshold level adjustment. The threshold switching is actually done in the main comparator. A converter feeds a digital calibration logic. This logic monitors the digitalized signal by looking for minimum and maximum values and also calculates correction values for threshold adjustment.