TLE4921-5U Infineon

TLE4921-5U Dynamic Differential Hall Effect Sensor IC Detection About this document Overview 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 Target applications The differential Hall Effect sensor TLE4921-5U provides a high sensitivity and a superior stability over temperature and symmetrical thresholds in order to achieve a stable duty cycle. TLE4921-5U 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. Product type Marking Ordering code Package TLE4921-5U 215U SP000013593 PG-SSO-4-1 Datasheet Please read the Important Notice and Warnings at the end of this document Rev. 1.2 www.infineon.com 2008-01TLE4921-5U Dynamic Differential Hall Effect Sensor IC Detection Table of contents Table of contents About this document . 1 Table of contents . 2 1 General 3 1.1 Pin Configuration (view on branded side of component) .3 1.2 Block diagram .3 1.3 Functional description . 4 1.4 Circuit description 4 2 Maximum ratings . 5 3 Operating range 6 4 Electrical and magnetic parameters . 7 5 Application configurations 9 6 Typical performance characteristics 12 7 Package outlines 19 8 Revision history . 20 Disclaimer 21 Datasheet 2 Rev. 1.2 2008-01