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4.6
Clamping - CH, CL
The clamping function is useful for separating the output range into an operating range and error ranges. If the
magnetic field is exceeding the selected measurement range, the output voltage V
values. Any value in the error range is interpreted as an error by the sensor counterpart.
Figure 4-3
shows an example in which the magnetic field range between B
between 0.8 V and 4.2 V.
5
V
(V)
out
4
3
2
1
0
Figure 4-3 Clamping Example
Clamping - TLE4997 :
Table 4-6
Clamping
Parameter
1)
Clamping low
1)
Clamping high
Clamping quantization steps
Clamping voltage drift
1) If clamping is set it must be within the allowed output range.
2)
Valid in the range (5% of V
and (6% of V
) < V
< ( 94% of V
DD
OUT
The clamping values are calculated by:
Clamping low voltage :
CL
----------- -
×
V
V
=
CLL
DD
4096
User's Manual
B
min
Symbol
Min.
V
0
CLL
V
0
CLH
ΔV
–
CLQ
ΔV
-15
CL
) < V
<(95% of V
) for T
DD
OUT
DD
) for 120°C < T
DD
J
Configuration & Calibration Parameters
Error range
Operating range
Error range
Values
Typ.
Max.
–
99.98
–
99.98
1.22
–
15
120°C
≤
J
150°C
≤
23
User's Manual
is limited to the clamping
OUT
and B
is mapped to voltages
min
max
V
CLH
V
CLL
B
max
B (mT)
Unit
Note / Test Condition
%V
DD
%V
DD
%mV
at V
= 5 V
DD
2)
mV
in lifetime
over temperature
v01_01, 2019-08
TLE4997
2)
(4.3)
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