A4988 Stepper Motor Driver Chinese Chip

? Low RDS (On) Output
? Automatic current decay mode detection / selection
? Mix with slow current decay modes
? Synchronous rectification for low power dissipation
? Internal UVLO
? Cross-current protection
? 3.3 and 5 V compatible logic supply
? Thermal shutdown circuitry
? Ground fault protection
? Load short-circuit protection
? Optional step five modes: full, 1/2, 1/4, 1/8 and 1/16