tle4966-3k Infineon Technologies Corporation, tle4966-3k Datasheet - Page 7

• Manufacturer Part Number: tle4966-3k
• Description: High Sensitivity Automotive Hall Switch With Direction Detection
• Manufacturer: Infineon Technologies Corporation

2
2.1
Figure 2
2.2
The chopped Dual Hall Switch comprises two Hall probes, bias generator, compensation circuits, oscillator, and
output transistors.
The bias generator provides currents for the Hall probes and the active circuits. Compensation circuits stabilize the
temperature behavior and reduce influence of technology variations.
The Active Error Compensation rejects offsets in signal stages and the influence of mechanical stress to the Hall
probes caused by molding and soldering processes and other thermal stresses in the package. This chopper
technique together with the threshold generator and the comparator ensures high accurate magnetic switching
thresholds.
Datasheet
General
Block Diagram
Block Diagram
Circuit Description
Chopped
Chopped
Probe
Probe
Hall
Hall
& Sequencer
Oscillator
(reverse polarity protected )
Voltage Regulator
Amplifier
Amplifier
V
Compensation
Filter
Filter
DD
Bias and
Circuits
7
Comparator
Hysteresis
with
ESD
Detection
Direction
Rev.1.0, 2010-09-20
GND
TLE4966-3K
Q2
Q1
General