The AMIS30624C6244G is a single-chip micro-stepping Motor Driver with a position controller and control/diagnostic interface. It is ready to build intelligent peripheral systems where up to 32 drivers can be connected to one I²C master. This significantly reduces system complexity. The chip receives positioning instructions through the bus and subsequently drives the stator coils so the two-phase stepper motor moves to the desired position. The on-chip position controller is configurable (OTP or RAM) for different motor types, positioning ranges and parameters for speed, acceleration and deceleration. Micro-stepping allows silent motor operation and increased positioning resolution. The advanced motion qualification mode enables verification of the complete mechanical system in function of the selected motion parameters. It can easily be connected to an I²C bus where the I²C master can fetch specific status information like actual position, error flags from each individual slave node.
● Micro-stepping technology
● Sensorless step-loss detection
● Fixed frequency PWM current-control
● Automatic selection of fast and slow decay mode
● No external fly-back diodes required
● Controller with RAM and OTP memory
● Overcurrent protection
● Under-voltage management
● Open circuit detection
● High temperature warning and management
● Low temperature flag
● EMI compatibility - High voltage outputs with slope control
