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The tool displays also the error that occurs due to imperfect matching of S
the calibration procedure, this error should be on the order of ±0.1%.
New DSP Parameter Calculation
Input:
TL
=
166
( 0 to 511)
pre
TQ
=
162
( 0 to 255)
pre
TT
=
28
( 0 to 31)
pre
TL
and TQ
pre
TT is fixed by Infineon to value 28 (leaded package devices) or 21 (SMD devices)
i
T
(i)
[°C]
J
1
-40
2
-20
3
0
4
25
5
50
6
75
7
100
8
120
Figure 5-5 Infineon tool for temperature calibration, TL and TQ calculation.
Note: Error (%) is the deviation of S
User's Manual
T0
=
user
TC1
=
user
TC2
=
user
shall be read from the sensor via the programming interface
pre
S
S
dsp,pre
app
1,0944
0,9559
1,0453
0,9638
1,0165
0,9729
1,0013
0,9861
1,0002
1,0013
1,0034
1,0185
1,0011
1,0376
0,9887
1,0544
1,20
1,15
1,10
1,05
1,00
0,95
0,90
0,85
0,80
-50
0
from the product of S
dsp,final
Calibration of TLE4997 Temperature Compensation
DSP,final
48
[°C]
-1
[ ° C
]
6,41E-04
-2
[ ° C
]
1,59E-06
S
S
* S
dsp,final
dsp,pre
app
1,0487
1,0462
1,0079
1,0074
0,9886
0,9889
0,9870
0,9874
1,0015
1,0015
1,0222
1,0219
1,0394
1,0387
1,0439
1,0424
50
100
T
(°C)
J
times S
dsp,pre
app
33
TLE4997
User's Manual
and S
*S
. Typically, after
DSP,pre
app
TL
and TQ
are calculated
final
final
automatically by VB script:
TL
=
209
final
TQ
=
175
final
TT
=
28
final
Error (%)
0,24
0,04
-0,04
-0,04
0,00
0,03
0,06
0,14
Sdsp,
pre
Sapp
150
v01_01, 2019-08
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