Q: THB7128 / THB8128 Step Motor Drivers - Feedback Please

Hi !

Anyone have used these IC step motor drivers - THB7128 / THB8128 ?
THB7128 - 3A, THB8128 - 4A, 9 - 32V
They seem to support almost everything needed:
1, 2, 4, 8, 16, 32, 64, 128 subdivision modes
Fixed current modes, 0.5/1/1.5/2/2.5/3A
Short circuit, over-current, over-temperature protection

Data sheets attached, more info available at
www.hhbtech.com

THB7128 Instructions.pdf (419 KB)

THB8128 Datasheet also attached

THB8128 Instructions.pdf (460 KB)