Dynamic Differential Hall Effect Sensor IC
TLE 4921-3U
Bipolar IC
Features
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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
Marking
21C3U
P-SSO-4-1
Type
TLE 4921-3U
Ordering Code
Q67006-A9171
Package
P-SSO-4-1
The differential Hall Effect sensor TLE 4921-3U provides a high sensitivity and a superior
stability over temperature and symmetrical thresholds in order to achieve a stable duty
cycle. TLE 4921-3U 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
2000-07-01
INFINEON [ INFINEON TECHNOLOGIES AG ]
