AMIS-30622 Datasheet, PDF (11/35 Pages) AMI SEMICONDUCTOR – I2C Microstepping Motordriver

AMIS-30622 I²C Microstepping Motordriver
Data Sheet
9.2 Functions Description
This chapter describes the four most important blocks:
• Position controller
• Main control and register, OTP memory + RAM
• Motordriver
• I²C controller
9.2.1 Position Controller
9.2.1.1 Positioning and Motion Control
A positioning command will produce a motion as illustrated
below. A motion starts with an acceleration phase from
minimum velocity (Vmin) to maximum velocity (Vmax), and
ends with a symmetrical deceleration. This is defined by the
Control logic according to the position required by the
application and to the parameters programmed by the
application during configuration phase. The current in the
coils is also programmable.
Parameter
Pmax - Pmin
Zero Speed Hold Current
Maximum Current
Acceleration and Deceleration
Vmin
Vmax
Value
See § 8.5
See § 9.2.2.12 (Ihold)
See § 9.2.2.12 (Irun)
See § 8.4
See § 8.3
See § 8.2
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