The DQ2722MA is a full digital 2 phase stepper driver based on DSP control and can supply 7A RMS ( 9.8A Peak)
The DQ2522MA is a full digital 2 phase stepper driver based on DSP control and can supply 5A RMS ( 7.0A Peak)
The drive voltage is from 110V to 220VAC - no external PSU required. It is designed for use with the 2 phase hybrid stepper motor with 86mm to 130mm outside diameter.