5Pcs New A4988 Stepper Motor Driver Module+Heat Sink 3D Printer cheap, US $11.15 – Picture 0

5Pcs New A4988 Stepper Motor Driver Module+Heat Sink 3D Printer cheap, US $11.15 – Picture 1

5Pcs New A4988 Stepper Motor Driver Module+Heat Sink 3D Printer cheap, US $11.15 – Picture 2

5pcs New A4988 Stepper Motor Driver Module+heat Sink 3d Printer Cheap

US $11.15

China, China
Jan 29th

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A4988 StepStick Stepper Motor Driver Module Description NOTE: this module Rs is 0.1Ω. Maximum current is 2A. 1. 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. 2. 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. 3. A4988 surface mount 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. Features: Low RDS (open) outputs 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 Packing List: 5Pcs New A4988 StepStick Stepper Motor Driver Module+Heat Sink Payment 1.We accept Paypal only. 2.Please confirm your ebay shipping address is exact after payment. 3.If your purchased is more than £30.00, please offer your phone number with shipping address. Delivery details 1.All item will be shipped by Airmail post within 1 business days. It takes approximately 15-25 days (USA ,CA,AU,UK,DE).other country 15-35 days. 2.Express by EMS ,it must add 25 USD shipping fee, it takes 5-10 workdays for delivery.If you need other Epxress(DHL,Fedex.UPS etc.),please contact us to talk about shipping fee. 3.Once you purchase, please DONOT leave negative, neutral feedback or open any case if you have not received item in 30 days, because we have mentioned the shipping time repeatedly. Contact us ???? 2 1.We offer retail and wholesale services. We can provide products in accordance with your requirements. If you have any questions or something to consult, please send us ebay message. 2.All messages will be answered within 1 business day. If you do not receive our reply, please kindly re-sent your message and we will reply to you as soon as possible. 3.Our aim is to provide Top Level Customer Service, Business hours are 9am to 6pm Beijing time (+8 GMT), Monday to Friday. Engineered for professional eBay sellers!