Ruimeng Technology introduces the MS3523X series (MS35233, MS35235) stepper motor driver ICs, integrating ultra‑quiet operation, 256 microstep division, stall detection, dual communication interfaces (I²C/SPI), and multiple protections. They support both two‑phase four‑wire and four‑phase five‑wire stepper motors, making them suitable for a wide range of applications including desktop AI robots, smart home appliances, projectors, industrial automation, medical equipment, and more.
Core Advantages
01 Ultra‑Quiet + 256 Microstep – Smooth, Silent Operation
Built‑in up to 256 microstep division, combined with an ultra‑quiet current regulation algorithm, significantly reduces low‑frequency vibration and operating noise. Whether in a desktop robot or a bedroom projector, the motor runs almost silently, delivering smooth and precise stepping action.
02 Stall Detection + Multiple Protections – Safe & Reliable
Real‑time monitoring of motor load status – when a stall occurs, the FLAG pin immediately outputs an indication, allowing the host controller to quickly execute retraction or shutdown. Integrated undervoltage, overcurrent, overtemperature, and open‑circuit detection form a complete system safety loop, effectively preventing mechanical jamming and electrical damage.
03 I²C / SPI Dual Interface + Smart Command Cache
No need to change chips due to interface mismatch – I²C and SPI are configurable via pins. Combined with command caching and automatic half‑current mode, the motor runs smoothly and automatically reduces holding current when stopped, balancing smooth performance with low power consumption.
Technical Parameters
(Refer to the datasheet for full specifications)
| Key Parameter | Value |
|---|---|
| Voltage range (V) | 4–18 |
| Max continuous current (A) | 1.4 |
| Max instantaneous current (A) | 1.6 |
| On-resistance (mΩ) | 1000 |
| Control mode | Serial interface |
| Control interface | I²C / SPI |
| Step microstep division | 256 |
| Operating temperature (°C) | -40 to 125 |
| Package | SOP16 / QFN16 |
| Function | MS35233: ultra‑quiet / fast two‑phase four‑wire / four‑phase five‑wire
MS35235: stall detection, ultra‑quiet / fast two‑phase four‑wire / four‑phase five‑wire |
Application Scenarios
With high precision and ultra‑quiet operation, the MS3523X series excels in the following scenarios:
1. Desktop AI Robots
Servo joints, wheel drives, head rotation, and other movements require high ing accuracy and ultra‑low noise. The 256 microstep division enables delicate and smooth motion control, while the ultra‑quiet mode ensures the motor is barely audible during human‑robot interaction. The stall detection feature of the MS35235 can ly cut off the drive when movement is obstructed, preventing motor overheating and damage, thereby improving overall system reliability.
2. Smart Home Appliances & Air Conditioner Vents
Devices such as air conditioner louvers, refrigerator dampers, and smart curtains often operate at night or in quiet environments. The MS3523X series delivers near‑silent operation, completely eliminating the start/stop noise of traditional motors. Its low heat generation supports long continuous operation, and stall detection effectively avoids failures caused by jammed dampers, providing a more comfortable home experience.
3. Projectors & Security PTZ Cameras
Projector auto‑focus, keystone correction, lens shift, and precision PTZ rotation all demand high microstep resolution and noise control. The MS3523X series provides smooth and fine lens control, avoiding focus jitter, while its ultra‑quiet mode ensures that a projector in the living room or a PTZ camera in a bedroom does not disturb users. The stall detection feature of the MS35235 also prevents PTZ damage caused by external jamming.
Make motor drive quieter, smarter, and safer
MS3523X Series – Powering your products with next‑generation “core” drive
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