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Arduino CNC 3D Printer A4988 2A DC Stepper Motor Driver -Free Heatsink

    Arduino CNC 3D Printer A4988 2A DC Stepper Motor Driver -Free Heatsink

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    Product ID : 195287752
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    Arduino CNC 3D Printer A4988 2A DC Stepper Motor Driver -Free Heatsink

    Arduino CNC 3D Printer A4988 2A DC Stepper Motor Driver -Free Heatsink


    Arduino CNC 3D Printer A4988 2A DC Stepper Motor Driver -Free Heatsink


    Arduino CNC 3D Printer A4988 2A DC Stepper Motor Driver -Free Heatsink

    Overview

     

    A4988 is a complete microstepping motor driver with built-in translator for easy operation. This product is available in full, half, 1/4, 1/8 and 1/16 step modes operate bipolar stepper motors, output drive capacity of up to 35 V and ± 2 A. A4988 includes a fixed off-time current regulator, the regulator in slow or mixed decay modes. A4988 converter is the key to the easy implementation. As long as the "step" input inputting one pulse drives the motor one microstep. There are no phase sequence tables, high frequency control lines, or complex interfaces to program. A4988 interface is very suitable for complex microprocessor is unavailable or is overburdened.

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

    A4988 surface mount QFN package (ES), a size of 5 mm × 5 mm, nominal overall package height of 0.90 mm, with an exposed pad for enhanced thermal dissipation. This package is Pb (suffix-T), with 100% matte tin leadframe plating.

     

    Features

     

    - Low RDS (On) Output

    - Automatic current decay mode detection / selection
    - Mix with slow current decay modes
    - Synchronous rectification for low power dissipation
    - Internal UVLO
    - Cross-current protection
    - 3.3 and 5 V compatible logic supply
    - Thermal shutdown circuitry
    - Ground fault protection
    - Load short-circuit protection
    - Optional step five modes: full, 1/2, 1/4, 1/8 and 1/16

    - Board Size : 20mm x 15mm

    - Suitable for 8v- 35v Stepper Motor
    - Current Maximum : 2A




    Package included :
    - A4988 Stepper Motor Driver *1
    - Heatsink *1


    Last Updated @ 4/11/2018 5:24:42 PM


    Last Updated @ 18/7/2020 11:21:08 PM

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    Item ID
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    ta****
    195387402
    10/2/2021 6:34:00 PM
    Even shipping cost is costly, item receiv ed extremely fast and  special thanks to poslaju
    ta****
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    10/2/2021 6:34:00 PM
    Even shipping cost is costly, item receiv ed extremely fast and  special thanks to poslaju
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    195286755
    7/17/2021 3:45:00 PM
    A reliable and trusted seller. No missing or broken components sold by them. Been purchasing from SGROBOT for several years.
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    A reliable and trusted seller. No missing or broken components sold by them. Been purchasing from SGROBOT for several years.
    Ch****
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    A reliable and trusted seller. No missing or broken components sold by them. Been purchasing from SGROBOT for several years.
    Ch****
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    A reliable and trusted seller. No missing or broken components sold by them. Been purchasing from SGROBOT for several years.
    Ch****
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    Display:
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    Enx****
    Question
    :
    Hi Sir. This product, A4988 is the red board correct?
    15/05/2018 12:03 PM
    Answer
    :
    Hi yes this is red colour
    15/05/2018 12:06 PM
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