TLE4942-1C Datasheet, PDF (13/31 Pages) Infineon Technologies AG – Differential Two-Wire Hall Effect Sensor-IC

TLE4942-1C
Table 4 Electrical Characteristics (cont’d)
All values specified at constant amplitude and offset of input signal, over
operating range, unless otherwise specified.
Typical values correspond to V_CC = 12 V and T_A = 25°C
Parameter
Symbol
Limit Values
Unit Remarks
min. typ. max.
in rare cases
(see Appendix B)
Number of pulses in
uncalibrated mode
n – _{DZ-calibration-}
–
8
edges
rare
n_DZ-Startup
–
–
5
pulses
in rare cases
(see Appendix B)
n – _DZ-Startup-
–
7
pulses
rare
Number of pulses with
invalid direction
n_DR-Startup
pulses After n_DR-Startup
pulses + 1 the
information
direction
ΔB < ΔB_EL
ΔB > ΔB_EL
–
–
7
–
–
2 ⁵⁾
information is
correct
Number of pulses with
n_EL-Startup
–
–
7
pulses After n_EL-Startup
invalid assembly bit
pulses + 1 the
information
assembly bit
information is
correct
Number of pulses where n_LR-Startup –
–
5
pulses LR information is
the airgap warning
provided only in
information is suppressed
calibrated mode
Signal behavior after
n_DZ-Start
–
–
2
edges Magnetic edge
undervoltage or
according to
standstill > t_Stop
Number of magnetic
edges where the first
Δ Bˆ
Limit, early startup
t_d,input has to be
taken into account
pulse in given.
Shortest time delay
between pulse 0 (stop
pulse) and pulse 1
293 345 397 µs
Reference rising
edges, includes
pre low length
Shortest time delay
between wheel speed
pulse 1 and 2 and all
further pulses
38 45 52 µs Falling to rising
edge - identical
with pre low bit
length
Data Sheet
14
V 4. 0, February 2010