tle5011 Infineon Technologies Corporation, tle5011 Datasheet - Page 20

• Manufacturer Part Number: tle5011
• Description: Gmr Based Angular Sensor
• Manufacturer: Infineon Technologies Corporation

5.5
5.5.1
The X and Y signals at the output can be described by the following equations:
A
O
ϕ
5.5.2
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
descriped by the following equations.
O
T
T
S
Measurement” on Page
Target Data Sheet
X
X
25
T
X
X
: Temperature value in digits
: Phase error of X (= cos) Signal
25 ,
: Amplitude of X (= cos) Signal
: Sensitivity of the temperature measurement path, (see chapter
: Offset of X (= cos) Signal
: Temperature value at 25°C in digits
O
Y
25
Angle Calculation
Components of the Output Signals
GMR Error Compensation
: Offset value at 25°C in digits
O
O
X
46).
Y
X
Y
=
=
=
=
A
A
O
O
X
Y
X25
Y25
×
×
cos
sin
+
+
KT
------------- -
KT
------------- -
20
(
A
O
ϕ
(
S
S
α
Y
α
Y
Y
T
T
OX
OY
: Phase error of Y (= sin) Signal
: Amplitude of Y (= sin) Signal
: Offset of Y (= sin) Signal
+
+
Electrical and Magnetic Parameters
ϕ
ϕ
×
×
Y
X
(
(
)
)
T
T
+
+
–
–
O
O
T
T
Y
25
25
X
)
)
O
X
and
“Temperature
V 0.11, 2008-01
O
TLE5011
Y
can be