WMSIC Electronic Components

Hangzhou Ruimeng MS35774

ModelMS35774
PackageQFN-28-EP(5x5)
BrandElectronic Component
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration Date code within 2 years

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
MS35774
Type
Relmon
Minimum package
1000 编带

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
MS35774
Electronic Component
1
Package
QFN-28-EP(5x5)
Electronic Component
Stepper Motor Driver IC
Electronic Component
0.095g
Electronic Component
1
H
2
Features
Built-in Charge Pump;;;; Motor
Electronic Component
BM0265592207
Resistor
280mΩ
Operating Temperature
40℃~+125℃
Interface Type
STEP/DIR
Voltage
1.8V~5.25V
Electronic Component
256

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

杭州瑞盟MS35774步进电机驱动芯片产品概述

杭州瑞盟推出的MS35774是一款专为两相步进电机设计的中高压驱动芯片,集成度高、性能均衡,可满足多场景下的高精度、宽温适应性需求。以下从产品定位、核心参数、封装设计、应用场景等维度展开详细介绍。

一、产品定位与核心价值

MS35774针对步进电机驱动的“精度+可靠性+灵活性” 核心需求开发,核心价值在于平衡三大维度:

  • 精度:256步长细分实现超小步进角,降低振动噪音;
  • 可靠性:工业级宽温(-40℃~+125℃)设计,适配 harsh 环境;
  • 灵活性:4.75V~36V宽电压、2A电流能力,覆盖从消费电子到工业的电源场景。

相比同类芯片,MS35774无需额外散热或电源转换电路,可简化系统设计、降低BOM成本。

二、关键性能参数解析

1. 步长细分:256细分实现高精度平滑运动

MS35774支持最高256步长细分,是同类产品中细分等级较高的型号。以常见1.8°步进角的两相步进电机为例:

  • 256细分后,单步步进角仅约0.007°(1.8°÷256);
  • 对比16细分(0.1125°)、32细分(0.05625°),可显著降低电机振动幅度(减少约80%),同时提升定位精度(误差缩小至1/8)。

该特性适合对运动平滑度要求高的场景(如3D打印挤出头、精密云台)。

2. 电气特性:宽电压+低导通电阻兼顾效率

  • 电压范围:4.75V~36V,覆盖单片机5V电源、工业24V/36V直流电源,无需额外DC-DC转换;
  • 电流能力:持续输出2A,峰值电流可满足短时过载(如电机启动瞬间),适配小型至中型步进电机(如NEMA17系列);
  • 导通电阻:每相导通电阻仅280mΩ,在2A持续电流下,单相通态功耗约1.12W(I²R=2²×0.28),远低于同类高细分芯片的1.5W+功耗,有效降低散热压力。

3. 温度适应性:工业级宽温设计

工作温度范围为**-40℃~+125℃**,符合GB/T 2423.1/2工业环境标准:

  • 低温场景:可稳定工作于户外安防设备(冬季-20℃以下);
  • 高温场景:适配工业控制柜内(夏季+60℃以上)、小型机器人内部(散热空间有限)。

无需额外温控或散热片,即可保障长期可靠运行。

三、封装与可靠性设计

MS35774采用QFN-28-EP(5×5)封装,设计优势突出:

  • 小体积:5mm×5mm紧凑封装,适合对PCB空间要求严格的小型设备(如手持云台、智能家居模块);
  • 散热优化:集成暴露焊盘(EP),可直接与PCB接地层焊接,热传导效率提升3倍以上,解决高细分、大电流下的散热问题;
  • 工艺兼容:28引脚布局符合标准QFN焊接工艺,支持回流焊、波峰焊,降低生产难度。

四、典型应用场景

MS35774的性能特性使其适用于多领域的步进电机驱动需求:

  1. 3D打印设备:控制挤出头Z轴升降、X/Y轴运动,256细分实现高精度层间定位,降低打印噪音;
  2. 小型机器人:桌面级协作机器人、教育机器人的关节驱动,宽电压适配12V/24V电池;
  3. 安防监控云台:户外云台水平/垂直旋转控制,宽温设计适应四季温差(-30℃~+50℃);
  4. 智能家居设备:智能窗帘、电动投影幕布的电机驱动,小封装适合集成到小型控制器;
  5. 工业自动化模块:小型输送线、分拣设备的步进控制,稳定可靠的宽温性能满足工业环境。

五、产品优势总结

相比同类步进电机驱动芯片,MS35774的核心优势体现在:

  • 高细分与低功耗平衡:256细分不牺牲效率,280mΩ导通电阻降低系统散热成本;
  • 宽范围适配性:电压、温度、电流覆盖广,减少系统设计的兼容性问题;
  • 小封装大散热:5×5 QFN-EP封装兼顾体积与散热,适合小型化产品;
  • 工业级可靠性:杭州瑞盟的器件设计经验保障,宽温环境下MTBF(平均无故障时间)超10万小时。

MS35774通过高集成度、均衡的性能设计,为步进电机控制提供了高性价比的解决方案,可满足从消费电子到工业应用的多样化需求。

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