TLE4905L, TLE4935L, TLE4945L, TLE4945-2L

Data Sheet

3

V1.5, 2007-11

Circuit Description

The circuit includes Hall generator, amplifier and Schmitt-Trigger on one chip. The internal

reference provides the supply voltage for the components. A magnetic field perpendicular to the

chip surface induces a voltage at the hall probe. This voltage is amplified and switches a Schmitt-

trigger with open-collector output. A protection diode against reverse power supply is integrated.

The output is protected against electrical disturbances.

AEB01243

Hall-

Generator

V

S

V

Ref

Output

Stage

Schmitt-

Trigger

Amplifier

Threshold

Generator

V

S

1

Q

3

2

GND

Figure 2

Block Diagram