PHD2505P is a 2-phase closed-loop pulse control driver with a 32-bit DSP motor control chip. It supports DC24–50 V input, 16 microstep settings, and a max pulse response of 200 kHz. Features low torque attenuation, speeds up to 3000 rpm, intelligent current adjustment, built-in position and alarm outputs, and single/double pulse control. Compact: 118×76×33 mm, 0.3 kg, suitable for 42–60 mm (NEMA17–24) closed-loop stepper motors.