TLE4966-3K Datasheet, PDF (5/15 Pages) Infineon Technologies AG – High Sensitivity Automotive Hall Switch with direction detection

High Sensitivity Automotive Hall Switch with direction
detection
TLE4966-3K
1
Overview
1.1
Features
• 2.7V to 24V supply voltage operation
• Operation from unregulated power supply
• High sensitivity and high stability
of the magnetic switching points
• High resistance to mechanical stress
by Active Error Compensation
• Reverse battery protection (-18V)
• Superior temperature stability
• Peak temperatures up to 195°C
• Low jitter (typ. 1μs)
• Digital output signals
• Excellent matching of the 2 Hall probes
• Hall plate distance 1.45mm
• Speed and direction output signal
• SMD package PG-TSOP-6-6-5
1.2
Functional Description
The TLE4966-3K is an integrated circuit dual Hall-effect sensor designed specifically for highly accurate
applications which use a rotating pole wheel. Precise magnetic switching points and high temperature stability are
achieved by active compensation circuits and chopper techniques on chip. The sensor provides a speed output
at Q2 with the status (high or low) corresponding to the magnetic field value. For positive magnetic fields (south
pole) exceeding the threshold B_OP the output is low, whereas for negative magnetic fields (north pole) lower than
B_RP the output switches to high. The output Q1 can be either high or low depending on the direction of rotation of
the pole wheel. This direction information is calculated internally.
Product Name
TLE4966-3K
Datasheet
Product Type
Double Hall Switch
Ordering Code
SP000835522
5
Package
PG-TSOP-6-6-5
Rev.1.0, 2010-09-20