M series refers to bai80VDC, maximum current du6A driver, which belongs to the old style of Zhi, single chip.
MA860H belongs to 80VAC (generally DC dao) maximum current 6A driver, h is generally different from standard models.
DM860 refers to a driver with 80VDC and a maximum current of 6A, which is a higher-end driver. Belongs to shu in DSP series.
DmA860h belongs to the 80VAC (generally also universal DC) maximum current 6A driver, h is generally different from the standard.