tle4926c Infineon Technologies Corporation, tle4926c Datasheet - Page 16

• Manufacturer Part Number: tle4926c
• Description: Dynamic Differential Hall Effect Sensor
• Manufacturer: Infineon Technologies Corporation

Application Configurations
Two possible applications are shown in Figure 7 and Figure 8 (Toothed and Magnet
Wheel).
The difference between two-wire and three-wire application is shown in Figure 11 for
the TLE 4926C.
Gear Tooth Sensing
In the case of ferromagnetic toothed wheel application the IC has to be biased by the
south or north pole of a permanent magnet (e.g. SmCO
with the dimensions 8 mm × 5 mm × 3 mm) which should cover both Hall probes.
The maximum air gap depends on
−
−
Figure 7
Figure 8
Data Sheet
a
b
L
a = 2.5 mm
b = 0.3 mm
DIN
d
z
m
T
d
the magnetic field strength (magnet used; pre-induction) and
the toothed wheel that is used (dimensions, material, etc.; resulting differential
field).
centered distance
of Hall probes
Hall probes to
IC surface
IC surface to
tooth wheel
diameter (mm)
number of teeth
module m = d/z (mm)
pitch T = π × m (mm)
T
Sensor Spacing
Toothed Wheel Dimensions
AEA01260
Conversion DIN – ASA
m = 25.4 mm/p
T = 25.4 mm CP
ASA
p
PD
CP
diameter pitch
pitch diameter
circular pitch CP = 1 inch × π /p
Page 16 of 27
L
b
5
(Vacuumschmelze VX145))
p = z/d (inch)
PD = z/p (inch)
S
N
a
N
S
TLE4926C-HTN E6747
AEA01259