Texas Instruments TIDA-060040, Manual

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On-Axis Magnetic Field Inputs shows the sensor inputs at a range of 3 mm above the magnet.
Angle (deg)
Mag
netic Flux
Den
sity (m
T)
0 45 90 135 180 225 270 315 360
-100
-80
-60
-40
-20
0
20
40
60
80
100
Bx
By
Figure 2-14. On-Axis Magnetic Field Inputs
2.3.5 Expected Performance
Based on the simulation results in Figure 2-15 , Figure 2-16 , and Figure 2-17 , it is now possible to estimate any
angle error resulting from amplitude mismatch or non-sinusoidal inputs.
• TMAG5170 Error
Figure 2-15. Expected TMAG5170 In-Plane Angle Error
System Overview www.ti.com
12 Absolute Angle Encoder Reference Design With Hall-Effect Sensors for
Precise Motor Position Control TIDUC07 – MARCH 2022
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