TLE4966G

General

Data Sheet

8

Rev. 1.01, 2019-10-22

2

General

2.1

Block Diagram

Voltage Regulator

(reverse polarity protected)

Oscillator

& Sequencer

Bias and

Compensation

Circuits

Filter

Filter

Amplifier

Amplifier

Direction

Detection

Chopped

Hall

Probe

ESD

V

S

Q2

Comparator

with

Hysteresis

Q1

GND

Chopped

Hall

Probe

Figure 2

Block Diagram

2.2

Circuit Description

The chopped Double 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 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 points.