Stepper Motor Driver IC - MS4998
The MS4998 is a bipolar micro-stepping motor driver IC with a built-in 8-bit DAC, supporting eight stepping modes: full step, 1/2, 1/4, 1/8, 1/16, 1/64, 1/128, and 1/256; the chip has a large driving capability of 35V, ±1.5A.