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