TLE4921-5U

Dynamic Differential Hall Effect Sensor IC TLE4921-5U Bipolar IC Features Advanced performance High sensitivity Symmetrical thresholds High piezo resistivity Reduced power consumption South and north pole pre-induction possible AC coupled Digital output signal Two-wire and three-wire configuration possible Large temperature range Large airgap Low cut-off frequency Protection against overvoltage Protection against reversed polarity Output protection against electrical disturbances Type TLE4921-5U Marking 21C5U P-SSO-4-1 Ordering Code Q62705-K664 Package PSSO4-1 The differential Hall Effect sensor TLE 4921-5U provides a high sensitivity and a superior stability over temperature and symmetrical thresholds in order to achieve a stable duty cycle. TLE 4921-5U is particularly suitable for rotational speed detection and timing applications of ferromagnetic toothed wheels such as anti-lock braking systems, transmissions, crankshafts, etc. The integrated circuit (based on Hall effect) provides a digital signal output with frequency proportional to the speed of rotation. Unlike other rotational sensors differential Hall ICs are not influenced by radial vibration within the effective airgap of the sensor and require no external signal processing. Data Sheet 1 2002-08-02 TLE4921-5U Pin Configuration (view on branded side of component) 2.67 Center of sensitive area ±0.15 1.53 2.5 1 2 3 4 VS Q GND C AEP01694 Figure 1 Pin Definitions and Funct...