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MS5905 MS321 DVS

RuiMon Technology expands its ultra-quiet 2-phase stepper motor driver family with the MS35779 – a highly integrated STEP/DIR interface driver with built-in power MOSFETs delivering up to 2A continuous current, engineered for demanding high-performance motion control applications.

 

 

Key Innovations

01 Enhanced Performance

➤ 0.6A–0.8A higher drive current vs. MS35774/6, supporting larger motors

➤ New stall detection for improved system safety and reliability

➤ Maintains family’s ultra-low-noise signature with superior motion quality

02 Intelligent Drive Control

➤ Dual operating modes:

  • Fast Mode: Optimized dynamic response for high-speed applications

  • Silent Mode: Minimizes acoustic noise while boosting efficiency

    ➤ High-resolution microstepping:

  • Direct STEP/DIR support for 8/16/32/64 microsteps

  • UART-configurable parameters (microsteps, current, etc.) eliminates manual potentiometer tuning, streamlining mass production and firmware updates

03 Comprehensive Protection

Integrated stall detection, undervoltage lockout (UVLO), overcurrent protection (including ground/supply shorts), and thermal shutdown ensure robust operation.

Typical Application Diagram

Technical Comparison

Parameter MS35774 MS35776/MS35777 MS35778/MS35779
Operating Voltage 4.7-36V 4.7-36V 4.7-29V
On-Resistance (RDS(ON)) 0.23Ω+0.23Ω 0.23Ω+0.23Ω 0.11Ω+0.11Ω
Phase Current 2A 2A 2.8A
S/D Interface Supported Supported Supported
Communication UART UART UART

Microstepping

(IO Control)

 Half,4,8,16 Half,4,8,16 8,16,32,64

Microstepping

(Internal Software)

 256 256 256
Chopper Mode / / Silent/Fast
Sleep Mode Supported
Supported
Supported
Auto Current Reduction Supported Supported Supported

*(Note: Refer to datasheet for final specifications. Package variants: MS35776-QFN28; MS35777-eHTSSOP28; MS35778-eTSSOP28; MS35779-QFN28)*

Application Scenarios

The MS35779 integrates PWM control, current sensing, and protection circuits with advanced technologies like microstepping, dynamic current control, silent chopping, and stall detection to deliver high-precision, ultra-quiet, and reliable motor performance.

Revolutionizing 3D Printing

Solves key pain points – noise, low accuracy, and step loss – in desktop FDM and industrial 3D printers, elevating print quality and user experience.

Precision Industrial & Medical

Digital control and hardware integration reduce PCB complexity and BOM cost, ideal for automation equipment, PTZ cameras, gimbals, and medical devices requiring uncompromising motion control.