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AS5601-ASOT 数据表(PDF) 26 Page - ams AG |
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AS5601-ASOT 数据表(HTML) 26 Page - ams AG |
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26 / 43 page ![]() Page 26 ams Datasheet Document Feedback [v1-02] 2014-Oct-29 AS5601 − Register Description Pushbutton Detection The AS5601 implements a pushbutton detection function through a dynamic and relative measurement of the orthogonal magnetic field strength. This pushbutton detection function drives the PUSH output pin high when the AS5601 detects a fast increase of the magnetic field (decrease of the airgap between the magnet and the AS5601). After a fast decrease of the magnetic field, the PUSH output is driven low. Figure 25: Pushbutton Detection Function Specifications Symbol Parameter Conditions Min Max Unit PUSHTHR Magnetic field threshold 0 255 LSB tpu_slope Push slope time 500 ms tpu_dur Push duration time NOM, LPM1 PM = 0X 10 10000 ms Push duration time LPM2 PM = 10 40 10000 ms Push duration time LPM3 PM = 11 150 10000 ms tpu_relax Time gap between two consecutive pushes in NOM, LPM1 PM = 0X 40 ms Time gap between two consecutive pushes in LPM2 PM = 10 40 ms Time gap between two consecutive pushes in LPM3 PM = 11 150 ms tpu_min_pulse Minimum duration of the PUSH pulse 40 50 ms tpu_recovery Recovery time after a very long pushbutton event 5000 ms BTH_VAR Push amplitude variation -20 +20 % |
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