TLE4917 Infineon

Low Power Hall Switch TLE 4917 Features Micro power design 2.4 V to 5.5 V battery operation High sensitivity and high stability of the magnetic switching points High resistance to mechanical stress Digital output signal P-TSOP6-6-2 Switching for both poles of a magnet (omnipolar) Programming pin for the switching direction of the output Not suitable for automotive application Functional Description The TLE 4917 is an Integrated Hall-Effect Sensor designed specifically to meet the requirements of low-power devices. e.g. as an On/Off switch in Cellular Flip-Phones, with battery operating voltages of 2.4V 5.5V. Precise magnetic switching points and high temperature stability are achieved through the unique design of the internal circuit. An onboard clock scheme is used to reduce the average operating current of the IC. During the operate phase the IC compares the actual magnetic field detected with the internally compensated switching points. The output Q is switched at the end of each operating phase. During the Stand-by phase the output stage is latched and the current consumption of the device reduced to some A. The IC switching behaviour is omnipolar, i.e. it can be switched on with either the North or South pole of a magnet. The PRG pin can be connected to V which holds the output V at a High level for B=0mT S Q conversely the output V can be inverted by connecting the PRG pin to GND, which will Q hold the output V at a Low level for B=0mT. In this later case the presence of an adequate Q magnetic field will cause the output V to switch to a High level ( i.e. off state ). Q Type Marking Ordering Code Package TLE 4917 17s Q62705K 605 P-TSOP6-6-2 Data Sheet 1 Pin Configuration (top view) Top View PRG GND GND month 6 5 4 Sensitive Area S 17 year 12 3 V GND Q S AEP02801 C Figure 1 Pin Definitions and Functions Pin Symbol Function 1 Supply Voltage V S 2 Ground GND 3 Open Drain Input Q 4 Ground GND 5 Ground GND 6 Programming Input PRG Data Sheet 2 ym