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Zum Scanner Board - China

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Brief introduction 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 and Benefits
· 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 Package set: Type 1: only scanner board Type 2: Scanner board+A4988 Type 3: Scanner board+A4988+UNO www juboll.com


Company Contact:


  • Phone: 0086-573-84023009

  • Address: Chengcheng Road,Jiashan Economic Development Zone,Jiaxing,Zhejiang,China , Jiaxing, Zhejiang, China

  • Email: Email


Published date: August 27, 2019 -

  • Business Description: Manufacturer of 3D printer motherboard,3D printer parts,stepper motors, Arduino parts, educational robots and robotic peripheral products.

    Jiaxing Juboll Technology Co., Ltd. is a high-tech enterprise specialized in researching and producing 3D printer parts, stepper motors, educational robots and robotic peripheral products.

    Juboll operates manufacturing facilities which are superiorly equipped, professionally staffed, and ISO9001 certified. That allows Juboll to fully understand our customer's applications and work closely with our OEM clients. Our main aim is to be a professional 3D printer parts supplier and provide perfect after-sale services to our partners.

    Juboll offers a full complement of parts for 3D printers,such as control board, driver, hotbed, extruder, nozzle, hardware fittings, filament and other customized parts.

    Based on the collaborations with universities and technological institutes,our dedicated team always push the intelligent technology envelope to the limit and beyond, incorporating the latest 3D printing technology into production, providing effective and durable products to fulfill variable requirements, and help you find the right solution for your 3D printer projects.

    Jiaxing Juboll Technology Co., Ltd.
    Add: Chengcheng Road,Jiashan Economic Development Zone,Jiaxing,Zhejiang,China
    Tel.: +86-573-84023009
    Fax: +86-573-84072270
    E-mail: sales@juboll.com
    Website: www.juboll.com

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