Dynamic Differential Hall Effect Sensor IC TLE4921-5U
Bipolar IC
Data Sheet 1 2002-08-02
P-SSO-4-1
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 Marking Ordering Code Package
TLE4921-5U 21C5U Q62705-K664 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.