TLE4925 Infineon Technologies, TLE4925 Datasheet - Page 12

• Manufacturer Part Number: TLE4925
• Description: IC HALL EFFECT SENSOR SSO-3-6
• Manufacturer: Infineon Technologies
• Type: Special Purposer

Specifications of TLE4925

• Sensing Range: 45% ~ 55%
• Voltage - Supply: 3.3 V ~ 18 V
• Current - Supply: 9mA
• Current - Output (max): 20mA
• Output Type: Digital, Open Drain
• Features: High Sensitivity
• Operating Temperature: -40°C ~ 150°C
• Package / Case: 3-SIP, SSO-3-06
• Operating Supply Voltage: 5 V or 9 V or 12 V
• Mounting Style: Through Hole
• Maximum Operating Temperature: + 195 C
• Minimum Operating Temperature: - 40 C
• Maximum Output Current: 50 mA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: SP000013753; SP000269338; TLE4925; TLE4925INTB; TLE4925X

Application Configurations
Two possible applications are shown in Figure 6 and Figure 7 (Toothed and
Magnet Wheel).
The difference between two-wire and three-wire application is shown in Figure
10 for the TLE4925C and in Figure 11 for the TLE4925.
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
VX145)) with the dimensions 8 mm × 5 mm × 3 mm) which should cover both
Hall probes.
The maximum air gap depends on
−
−
Figure 6
Figure 7
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 12 of 28
L
b
p = z/d (inch)
PD = z/p (inch)
S
N
a
N
S
5
(Vacuumschmelze
AEA01259
10/02/2005