The A4988 is a complete Microstepping Motor Driver with built-in translator for easy operation. The driver has a maximum output capacity of 35 V and ± 2 A. It can operate bipolar stepper motors in full-, half-, quarter-, eighth-, and sixteenth-step modes. This unit comes pre-soldered with the header pins and includes an optional heatsink. Specifications : Low RDS (ON) output Optional heatsink included Automatic current decay mode detection / selection Mixed with slow current decay modes Synchronous rectification for low power dissipation Internal UVLO Crossover-current protection 3.3 and 5 V compatible logic supply Thermal shutdown circuitry Ground fault protection Load short-circuit protection Five selectable step modes: full, 1/2, 1/4, 1/8 and 1/16 Includes: 1 x A4988 module 1 x Heatsink
