Datasheet

TMC4671 Datasheet • IC Version V1.00 | Document Revision V1.03 • 2018-Sept-06
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Figure 12: N_POLE_PAIRS - Number of Pole Pairs (Number of Poles)
4.3.3 Numerical Representation of Angles PHI
Electrical angles and mechanical angles are represented as 16 bit integer values. One full revolution of
360 deg is equivalent to 2
16
= 65536 steps. Any position coming from a sensor is mapped to this integer
range. Adding an offset of PHI_OFFSET causes a rotation of an angle PHI_OFFSET/ 2
16
. Subtraction of an
offset causes a rotation of an angle PHI_OFFSET in opposite direction.
Figure 13: Integer Representation of Angles as 16 Bit signed (s16) resp. 16 Bit unsigned (u16)
Hexadecimal Value u16 s16 PHI[°] ±PHI[°]
0x0000
h
0 0 0.0 0.0
0x1555
h
5461 5461 30.0 -330.0
0x2AAA
h
10922 10922 60.0 -300.0
0x4000
h
16384 16384 90.0 -270.0
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