TLE4941 Datasheet, PDF (7/11 Pages) Infineon Technologies AG – Differential Two-Wire Hall Effect Sensor IC

TLE4941, TLE4941C
Output Description
Under ideal conditions, the output shows a duty cycle of 50 %. Under real conditions,
the duty cycle is determined by the mechanical dimensions of the target wheel and
its tolerances. (40% to 60% might be exceeded for pitch >> 5mm due to the zero-
crossing principle.)
Speed signal sensor internal
Transferred speed signal
Figure 3 Speed Signal (half a period = 0.5 * 1/f_speed)
I
IHigh
ILow
tr
90%
10%
50%
t1
tf
T
t
Figure 4 Definition of rise and fall time, duty = t1/T * 100%
TLE4941 - TLE 4941C Data Sheet
7
Febrary 2002