• signs in china Home
  • |
  • Sign in or register
  • |
  • My Account
  • |
  • Help
  • Live Chat
New Customer Privilege!
Register to get $100 exclusive coupons!
I know x
3D Printer Reprap Stepper Driver A4988 Stepper Motor Driver and Heat Sink with Sticker
  • 3D Printer Reprap Stepper Driver A4988 Stepper Motor Driver and Heat Sink with Sticker

See larger image and other views (with zoom)

3D Printer Reprap Stepper Driver A4988 Stepper Motor Driver and Heat Sink with Sticker

   |   15 Transactions

Item Code:ACC-3DP-002

Buyer Protection

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 x 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

1. I don’t know this website well, how can I trust you?
2. Not clear about the Price Policy of Sign-in-China.com?
3. How to pay? Can I use credit card?
4. Is it safe to pay online? Will it occur any security problems concerning my personal information?
Quick Inquiry for This Product
3D Printer Reprap Stepper Driver A4988 Stepper Motor Driver and Heat Sink with Sticker

3D Printer Reprap Stepper Driver A4988 Stepper Motor Driver and Heat Sink with Sticker

$1.23 - 1.37/pc

Min. Order : 1 pc

  • *Business E-mail:
  • *Name:
  • Phone:
  • +86(10) 6370-5868
  • *Message:
  • Characters:20(Min.) - 2000(Max.)
  • *Verification code:

Want to be Updated with More Promotions? YES!

E-mail sign up for special offers

Product Tags : A B C D E F G H I J K L M N O P Q R S T U V W X Y Z 0 1 2 3 4 5 6 7 8 9

©2006-2016 by Beijing ChinaSigns Information Company Limited All Rights Reserved.

Our local sites:

www.Sign-in-China.com, who belongs to Beijing ChinaSigns Information Co., Ltd. is the biggest online supplier of sign products in the world and specialized in providing One Stop Solution for customers to select AD equipments, AD consuming materials, sign exhibition products, etc.

She is also the authorized overseas service center by China Inkjet Printing Association, for which we have set up overseas branches in 6 foreign countries in order to provide better service for our customers all over the world.

Our products cover all field of the AD and signage and all the products we supply are made in accordance with international quality standards as a result that, at present, we have more than 9,000 products online for sale. Since we implement the centralized purchasing, all the products are quoted with competitive prices. Besides, the product quality and our service are both guaranteed by China Inkjet Printing Association as well.