MS35629NA: 36V, 1.5A Peak Current, 256 Microstepping Silent Two-Phase Stepper Driver with Integrated Stall Detection Function

As intelligent cabins continue to demand higher levels of quietness and comfort, RuiMeng Technology officially launches the MS35629NA automotive-grade stepper motor driver chip. This 36V, 1.5A two-phase stepper motor driver chip, featuring silent operation and stall detection, provides an ideal solution for automotive intelligent systems with its exceptional noise control and precise motor driving capabilities.

Product Highlights

01 Silent Technology Innovation

The MS35629NA achieves unprecedented smooth and quiet motor operation through optimized drive algorithms and current control strategies, combined with a maximum of 256 microstepping modes. This innovative technology effectively suppresses stepper motor operating noise, creating a forest-like quiet cabin environment for occupants.

02 Comprehensive Safety Protection Mechanism

The chip integrates multiple protection functions such as stall detection, open-circuit diagnosis, undervoltage lockout, overcurrent, and overtemperature protection, forming a complete safety protection system. These features ensure stable and reliable motor operation under various complex working conditions, significantly enhancing system safety and durability, and meeting the automotive electronics industry's ultimate pursuit of reliability.

03 High-Performance Hardware Design

Utilizing a compact QFN32 package, it achieves a maximum supply voltage of 36V and a peak current output of 1.5A within a limited space. The low on-resistance design effectively reduces power consumption and temperature rise. Coupled with various decay modes and high-precision current control, it ensures excellent dynamic response and operational stability of the motor in various application scenarios.

Technical Parameters

(Note: 1. * represents the output current of the power transistors in the drive section. 2. All parameters are subject to the datasheet.)

Application Scenarios

Headlamp Position Control

Enables precise beam control for matrix LED headlights, ensuring accurate and stable lighting effects while eliminating drive noise interference.

HUD (Head-Up Display)

Provides stable image ing control, ensuring clear and jitter-free display content. Combined with excellent heat dissipation characteristics, it ensures long-term stable system operation.

Hidden Vents

Provides quiet and reliable air direction adjustment for hidden vents, meeting the reliability requirements for long-term use of in-vehicle climate systems.

Leveraging its silent technology, high integration, and comprehensive diagnostic and protection functions, the MS35629NA precisely meets the stringent requirements for low noise, high precision, and high reliability in modern automotive electronic systems such as vehicle lights, air conditioning, and HUD applications. It stands as an ideal drive solution for enhancing driving comfort and safety.