The Big Easy Driver, designed by Brian Schmalz, is a stepper motor driver board for bi-polar stepper motors up to a max 2A/phase. It is based on the Allegro A4988 stepper driver chip. It's the next version of the popular Easy Driver board.
Each Big Easy Driver can drive up to a max of 2A per phase of a bi-polar stepper motor. It is a chopper microstepping driver which defaults to 16 step microstepping mode. It can take a maximum motor drive voltage of around 30V, and includes on-board 5V/3.3V regulation, so only one supply is necessary. Although this board should be able to run most systems without active cooling while operating at 1.4-1.7A/phase, a heatsink is required for loads approaching 2A/phase. You can find the recommended heatsink in the related items below.
Feature:
- Bi-polar Microstepping Driver
- 2A/Phase Max
- 1.4-1.7A/Phase w/o Heatsink
- Max Motor Drive Voltage: 30V
- On-board 5V/3.3V Regulation
Specification:
- Low RDS(ON) outputs
- Automatic current decay mode detection/selection
- Mixed and 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
- Short-to-ground protection
- Shorted load protection
- Five selectable step modes: full, 1/2, 1/4, 1/8, and 1/16
| General Specification |
| Microstepping Driver |
Bi-polar |
| Phase Current |
2A/Phase Max |
| Max Motor Drive Voltage |
35V |
| On-board Regulation |
5V/3.3V |
| Length (mm) |
31 |
| Width (mm) |
36 |
| Height (mm) |
10 |
| Weight (gm) |
0.006kg |
| Shipment Weight |
0.008 kg |
| Shipment Dimensions |
12x8x2.5 |
Package Includes :
- 1 x Big Easy Driver - Stepper Motor Driver
