TLE4905L Datasheet, PDF (3/15 Pages) Siemens Semiconductor Group – Uni- and Bipolar Hall IC Switches for Magnetic Field Applications

TLE 4905 L; TLE 4935 L;
TLE 4935-2 L; TLE 4945 L; TLE 4945-2L
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.
Threshold
Generator
V_S ¹
3Q
Hall-
Generator
V_S
V_Ref
Figure 2
Block Diagram
Amplifier
2
GND
Schmitt-
Trigger
Output
Stage
AEB01243
Data Sheet
3
2000-07-01