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Description

Simple step and direction control interface,Take anti-static measures before you use the A4988 modules in case of short-circuit.
Five different step resolutions: full-step, half-step, quarter-step, eighth-step, and sixteenth-step. Output drive capacity of up to 35 V and ± 1.2 A.
Adjustable current control lets you set the maximum current output with a potentiometer.
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.

Feature: 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. A4988 surface QFN package (ES), the size of 5 mm × 5 mm nominal overall package height of 0.90 mm, and with exposed pad for enhanced thermal dissipation. The package is Pb (suffixes-T), with 100% matte tin leadframe plating.

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ELEGOO Stepstick Stepper Motor Driver Module A4988 + Heat Sink for 3D Printer Reprap, CNC Machine or Robotics(Pack of 5)

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› Industrial And Scientific › Additive Manufacturing Products › 3 D Printer Parts And Accessories › 3 D Printer Interface And Driver Modules

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