03-20834-03 64-20834D ASM Stepper Driver JAN 2006

03-20834-03 64-20834D ASM STEPPER DRIVER JAN 2006

Product Details

Features:

1. Simple step and direction control interface

2. Five different step resolutions: full-step, half-step, quarter-step, eighth-step, and sixteenth-step
3. Adjustable current control lets you set the maximum current output with a potentiometer, which lets you use voltages above your stepper motor’s rated voltage to achieve higher step rates
4. Intelligent chopping control that automatically selects the correct current decay mode (fast decay or slow decay)
5. Over-temperature thermal shutdown, under-voltage lockout, and crossover-current protection
6. Short-to-ground and shorted-load protection
7. 4-layer, 2 oz copper PCB for improved heat dissipation
8. Exposed solderable ground pad below the driver IC on the bottom of the PCB

This product ships with all surface-mount components—including the A4988 driver IC—installed as shown in the product picture. The Black Edition has the same component layout and pinout as our A4988 stepper motor driver carrier, so it can be used as a higher-performance drop-in replacement in applications designed for our original drivers. The Black Edition achieves its higher performance through its four-layer printed circuit board (PCB), which better draws heat out of the A4988 driver—while our original carrier can deliver up to approximately 1 A per phase in full-step mode without a heat sink or air flow, the Black Edition can deliver up to approximately 1.2 A under the same conditions.

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