3D Printer A4988 Reprap Step Motor Driver Module

3D Printer A4988 Reprap Step Motor Driver Module

Módulo Driver A4988 Reprap para control de motores paso a paso. Muy utilizado en impresoras 3D. Incluye disipador y headers para inserción en placa (para soldar).


Peso: 0.005 Kg

Disponibilidad: Sin Stock

Su correo electrónico:

ARS 4846.00


El producto no está disponible para la venta en este momento



A4988 is a complete microstepping motor driver with built-in translator for easy operation. The product can be full, half, 1/4, 1/8 and 1/16 step mode to operate bipolar stepper motor output drive capacity of up to 35 V and ± 2 A. A4988 includes a fixed off-time current regulator, the regulator can slow or mixed decay mode. The converter is the key to the easy implementation of the A4988. In inputting one pulse on the STEP input drives the motor one microstep. No phase sequence tables, high frequency control lines, or complex interfaces to programming. A4988 interface is very suitable for complex microprocessor is unavailable or is overburdened.

Micro-step operation, the chopping control in the A4988 automatically selects the current decay mode (Slow or Mixed). In the mixed decay mode, the device is initially set to fast decay in the part of the fixed off-time, then a slow decay in the rest of the downtime. Mixed-decay current control scheme results in reduced audible motor noise, increased step accuracy, and reduced power consumption. Internal synchronous rectification control circuitry to improve the pulse-width modulation (PWM) power consumption when operating. Internal circuit protection includes: thermal shutdown with hysteresis, undervoltage lockout (UVLO) and crossover current protection. Special power-Sort.



  • Low RDS (ON) outputs
  • 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 Circuit.
  • Load short-circuit protection.
  • Of five optional step mode: full, 1/2, 1/4, 1/8 and 1/16.

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