亚博棋牌游戏Allegro MicroSystems, LLC released with converter and over-current protection new DMOS micro stepping drive

亚博棋牌游戏Allegro MicroSystems, LLC released with converter and over-current protection new DMOS micro stepping drive

On July 12, 2016

Proprietary current control technology can make the micro step by step to achieve the highest accuracy

亚博棋牌游戏Allegro MicroSystems, LLC announced a new integrated bipolar stepper motor driver IC, the product has a built-in converter in order to facilitate operation.Allegro companyA5985You can use the whole steps forward and one to three minutes of segmentation model to drive a bipolar stepper motor, these patterns can be chosen by MSx logic input.New device output drive capacity up to 40 v and + 2 a, and USES the single power supply.A5985面向办公和工业自动化市场，主要应用包括：自动取款机、POS机和激光打印机、3D打印机、复印机、闭路电视（CCTV）摄像机、缝纫机、自动售货机和机器人等。

A5985 motor driver IC adopted Allegro proprietary fast attenuation (APFD) as a percentage of the adaptive algorithm, can in a variety of stepper motor speed and features within the scope of optimal current waveform.APFD can adjust quickly failure variables, thus can in maintaining the current regulation at the same time, and can achieve the goal of current ripple minimization.The adaptive feature can improve system performance, reduce the audible noise of motor, reduce vibration, improve the precision stepper.A5985 built-in converter is the key to it is easy to implement.Only need to enter a pulse STEP (STEP) can drive the STEP motor in a micro STEP, without phase sequence tables, high-frequency control line or complex interface programming.A5985 interface can be perfect match those without complex micro processor or microprocessor application of overload.

A5985 internal synchronous rectifier control circuit can help in reducing power consumption in the process of PWM operation, the internal circuit protection functions include: to lead grounding short circuit or motor power short circuit of over-current protection, thermal shutdown with time delay, under-voltage lockout (UVLO) and crossover current protection.A5985 don't need special power up.

A5985 USES 28 pin, 5 mm x 5 mm x 0.90 mm QFN package (code ET) supply, and with naked bonding pad can improve the heat dissipation performance.This for lead-free packaging (suffix T), fog pin box with 100% of tin plating.