TLE5011_11 INFINEON [Infineon Technologies AG], TLE5011_11 Datasheet - Page 19

• Manufacturer Part Number: TLE5011_11
• Description: GMR Angle Sensor
• Manufacturer: INFINEON [Infineon Technologies AG]

3.5
GMR Values
The end-of-line calibration can be accomplished using following sequence:
1. Turn magnetic field 360° left and measure X and Y values
2. Calculate amplitude, offset, phase correction values of left turn
3. Turn further 90° left and 90° back right without measurement
4. Turn magnetic field 360° right and measure X and Y values
5. Calculate amplitude, offset, phase correction values of right turn
6. Calculate mean values of amplitude, offset, phase correction values
The conditions are specified in
The values obtained from this sequence must be stored in a non-volatile memory. They are used for the correction
of the read-out X and Y values before the angular calculation.
The resulting angular deviation is calculated using the parameters determined above.
Temperature Measurement
The signal amplitude T
and stored.
Calibration Conditions
All errors are related to calibration performed by Infineon under the following conditions:
Table 9
Parameter
3.6
3.6.1
The X and Y signals at the output can be described by the following equations:
A
O
ϕ
3.6.2
Temperature-dependent Offset Value
To increase the accuracy, the temperature-dependent offset drift can be compensated. The temperature of the
chip must be read out. The offset values O
Final Data Sheet
Flux density
Temperature
X
X
X
: Amplitude of X (= cos) signal
: Phase error of X (= cos) signal
: Offset of X (= cos) signal
Calibration
GMR test calibration conditions at IFX
Angle Calculation
Components of the Output Signals
GMR Error Compensation
25
of the temperature measurement path at the calibration conditions must be measured
Symbol
B
T
CAL
CAL
Table
9.
A
O
ϕ
Y
Y
X
Limit Values
min.
-
-
Y
Y
: Amplitude of Y (= sin) signal
: Phase error of Y (= sin) signal
: Offset of Y (= sin) signal
X
=
=
and O
A
A
X
Y
×
×
Y
typ.
30
25
cos
can be described by the following equations.
sin
19
(
(
α
α
+
+
ϕ
ϕ
Y
X
max.
-
-
)
)
+
+
O
O
Y
X
Unit
mT
°C
Notes
B
Z
= 0 mT
V2.0, 2011-03
Specification
TLE5011