TLE4941-2 Datasheet, PDF (7/8 Pages) Infineon Technologies AG – Differential Two-Wire Hall Effect Sensor IC

TLE4941-2, TLE4941-2C Supplement
Parameter
Jitter during uncalibrated
mode
Symbol
S_JitClose
(1σ-value)
min. typ.
max.
±3
±4
S_JitFar
(1σ-value)
S_JitAC
(1σ-value)
Magnetic field amplitude
change necessary for early
startup of the –2 Versions
∆Bˆ _{Limit, early startup}
> 2 * ? Bˆ _Limit + X%
(X=10)
∆Bˆ _Limit,
early startup
Permitted time for edges to
exceed ∆Bˆ _Limit,
early startup
∆t_{Limit, slow}
early startup
±5
±7
±3
0.7 1.6 3.0
+10% +10%
0.7 1.76 3.3
590
Unit
%
%
%
%
%
Conditions
-40°C ≤T_amb ≤ 150°C
150°C ≤T_amb ≤
170°C
-40°C ≤T_amb ≤ 150°C
150°C≤T_amb ≤170°C
see TLE 4941
data sheet
These magnetic field
changes are
necessary for startup
with the second
mT _edge
mT
necessary for startup
with the second
ms edge
f < 1s
Behaviour at magnetic input signals slower than T_stop (self-calibration time period):
Unlike the TLE4941 magnetic changes exceeding ∆Bˆ _{Limit,early startup} can cause output switching
of the TLE4941-2, even at f significantly lower than 1Hz. Depending on their amplitude edges
slower than ∆t_{Limit, slow early startup} might be detected. If the digital noise constant ( ∆Bˆ _{Limit,early startup} )
is not exceeded before a new initial self-calibration is started, the output of the corresponding
edge will be inhibited. This depends on signal amplitude and initial phase.
3 Additional remarks
All additional parameters for TLE4941-2 are guaranteed by design, based on lab
characterizations. For series production additional to the parameters of TLE4941
(standard type) only n_DZ-start is tested.
TLE4941-2 - TLE4941-2C
7
Datasheet supplement
February 2002