QKZee Technologies

Description

This breakout board for TI’s DRV8825 micro-stepping bipolar stepper motor driver features adjustable current limiting, over-current and over-temperature protection, and six micro-step resolutions (down to 1/32-step). It operates from 8.2 V to 45 V and can deliver up to approximately 1.5 A per phase without a heat sink or forced air flow (rated for up to 2.2 A per coil with sufficient additional cooling). The driver has a pin-out and interface that are nearly identical to those of our A4988 stepper motor driver carriers, so it can be used as a higher-performance drop-in replacement for those boards in many applications. This board ships with 0.1″ male header pins included but not soldered in.

• Max coil current: 2.2A
• 45 V maximum supply voltage
• Can interface directly with 3.3 V and 5 V systems
• Over-temperature thermal shutdown, over-current shutdown, and under-voltage lockout
• Short-to-ground and shorted-load protection
• More powerful and more precise than the commonly used A4988
• Needs a good air flow below the chip
• The heat-sink is optional if you have a good air flow, but needed in order to use the max current.
• Maximum resolution of 1/32 micro-steps supported by 8bit micro-controlers such as Atmega 2560.