Description
●The A4984 is a complete microstepping motor driver with built-in translator for easy operation. It is designed to operate bipolar stepper motors in full-, half-, quarter-, and eighth-step modes. Step modes are selectable by MSx logic inputs. It has an output drive capacity of up to 35 V and ±2 A. The A4984 includes a fixed off-time current regulator which has the ability to operate in Slow or Mixed decay modes.
●Features and Benefits
●▪ Low RDS(ON) outputs
●▪ Automatic current decay mode detection/selection
●▪ Mixed and Slow current decay modes
●▪ Synchronous rectification for low power dissipation
●▪ Internal UVLO
●▪ Crossover-current protection
●▪ 3.3 and 5 V compatible logic supply
●▪ Thin profile QFN and TSSOP packages
●▪ Thermal shutdown circuitry
●▪ Short-to-ground protection
●▪ Shorted load protection
●▪ Low current Sleep mode, < 10 μA
●▪ No smoke no fire (NSNF) compliance (ET package)
