Reprap Stepper Driver A4988 Stepper Driver with Heatsink for 3D Printer, US $630 – Picture 0

Reprap Stepper Driver A4988 Stepper Driver with Heatsink for 3D Printer, US $630 – Picture 1

Reprap Stepper Driver A4988 Stepper Driver with Heatsink for 3D Printer, US $630 – Picture 2

Reprap Stepper Driver A4988 Stepper Driver With Heatsink For 3d Printer

US $630

Shenzhen, China
Jan 29th

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Store Category You May Also Like Description 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 Included: 1XA4988 Stepper Driver 1x Heatsink Payment Delivery details Terms of sales About us Contact us Payment 1. We accept payment via PAYPAL ONLY. 2. Payment must be made within 4 days of auction closing. (Non-payment may result in a UPI (Unpaid Item) being put on your account. Ebay will automatically close your account if you accumulate 4 UPI's total.) 3. TOTAL AMOUNT DUE includes the final auction price plus S&H(Shipping and Handling). 4. S&H will be determined based upon the SHIP TO address. PLEASE NOTE: S&H DOES NOT INCLUDE CUSTOMS OR ANY OTHER IMPORTATION FEES. 5. Please list your special requests (color, packages, etc.) in the PAYPAL NOTES SECTION when you make payment. Delivery details 1. You have 7 days to contact us and 10 days to return it from the date it was received. If this item is in your possession more than 7 days, it is considered used and WE WILL NOT ISSUE YOU A REFUND OR REPLACEMENT. There are NO EXCEPTIONS! 2. All returned items MUST BE in the original packaging and you MUST PROVIDE us with the shipping tracking number, specific reason for the return, and your eBay ID. 3. We will refund YOUR FULL WINNING BID AMOUNT, upon receipt of the item in its original condition and packaging with all components and accessories included, AFTER BOTH Buyer and Seller cancel the transaction from eBay. OR, you may choose to have a replacement. 4. Return shipping is to be paid by the Buyer. 5.For the total amount less than US$5,will delivery by Singapore Post Air Normal Mail,the tracking number maybe not available for information tracking. If total amount more than US$5,will delivery by China Post Air Mail with a tracking number which you could track the information. Terms of sales 1. WORLDWIDE SHIPPING. 2. Orders processed within 24-48 hours of payment verification. 3. We only ship to confirmed EBAY addresses. YourEBAYaddress MUST MATCH your Shipping address. 4. The images shown are not the actual item and are for your reference only. 5. SERVICE TRANSIT TIME is provided by the carrier and excludes weekends and holidays. Transit times may vary, particularly during the holiday season. 6. If you have not received your shipment within 30 days from payment, please contact us. We will track the shipment and get back to you as soon as possible with a reply. Our goal is customer satisfaction! 7. Due to stock status and time differences, we will choose to ship your item from our first available warehouse for fast delivery. 8. Delivery Time: (Other countries or remote areas may take longer.) About us We are a professional Electronic Compnents Supplier,we could offer thousands kinds of USB Boards,Modules,Sensors and so on . Contact us Engineered for professional eBay sellers!