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AS5245

Data Sheet - D e t a i l e d D e s c r i p t i o n

Figure 6. Incremental Output

The hysteresis trimming is done at the final test (factory trimming) and set to 4 LSB, related to a 12 bit number.

of a rotational direction change, the incremental outputs have a hysteresis of 4 LSB. Regardless of the programmed incremental resolution, the

hysteresis of 4 LSB always corresponds to the highest resolution of 12 bit. In absolute terms, the hysteresis is set to 0.35 degrees for all

resolutions. For constant rotational directions, every magnet position change is indicated at the incremental outputs (see Figure 7). For example,

if the magnet turns clockwise from position “x+3“ to “x+4“, the incremental output would also indicate this position accordingly. A change of the

magnet’s rotational direction back to position “x+3“ means that the incremental output still remains unchanged for the duration of 4 LSB, until

position “x+2“is reached. Following this direction, the incremental outputs will again be updated with every change of the magnet position.

Figure 7. Hysteresis Window for Incremental Outputs

Mode_Index

D Test2_B

D Test1_A

1 LSB

Programmed

Zero Position

ClockWise

3 LSB

Counter ClockWise

Magnet Position

Hysteresis :

0.35°

X +2

Incremental

Output

Indication

Clockwise Direction

Counterclockwise Direction

X +4

X

X

X +2

X +4 X +5

X +3

X +1

X +1

X +3

X +6

X +5

X +6