BZ 3D A4988 Stepstick Stepper Motor Driver Module  with Heat Sink for 3D Printer Controller Ramps 1.4 MKS Gen L SKR V1.3 Board for 3D Printer Part(Pack of 5pcs)

-Intelligent chopping control that automatically selects the correct current decay mode (fast decay or slow decay) 
-Over-temperature thermal shutdown, under-voltage lockout, and crossover-current protection 
-Automatic current decay mode detection / selection 
-Internal UVLO
  -Mixed with slow current decay modes 
-Synchronous rectification for low power dissipation 
-Crossover-current protection 
-Thermal shutdown circuitry 
-3.3 and 5 V compatible logic supply 
-Thermal shutdown circuitry 
-Ground Fault Circuit 
-Load short-circuit protection 
-Of five optional step mode: full, 1/2, 1/4, 1/8 and 1/16

Chip upgrade Using the latest high-quality chips, higher compatibility and better conductivity.(It is believed that only high quality products can ensure the quality of your work and bring safety to your work.)

Product Features

  • Compared with ordinary A4988, our high quality A4988 drive production process is improved again by PCB gold plate process (gold-plated pin) SMT placement machine manufacturing, non-manual welding, higher yield and more stable performance.
  • Performance upgrade: PCB covering copper process upgrade to 2oz (our high-quality copper thickness 70um, ordinary 35um), higher copper content, better heat dissipation performance.
  • Under 2A current, it can work for a long time. It is very suitable for 3D Printer, Mendel, Huxley and other machines.
  • Using the latest chips, higher compatibility and better conductivity
  • 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 toachieve higher step rates.

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