SFM8801 High-Performance Motor Driver IC

Product Overview

The SFM8801 is a high-performance integrated motor driver IC designed for high-precision OIS actuator applications. It integrates a silicon-based Hall position sensor, high-resolution ADC (Analog-to-Digital Converter), DAC (Digital-to-Analog Converter), and a single-channel H-bridge driver, RISC-V MCU, delivering reliable driving capabilities for various precision motion control systems. It also supports parameter storage and data access, providing the system with greater flexibility and configurability.

Key Features

Integrated Hall Position Sensor
    The SFM8801 features a built-in high-precision silicon-based Hall sensor that provides real-time magnetic motion detection and accurate position feedback for motors.

High-Resolution Data Acquisition
    Equipped with a high-resolution ADC for precise analog signal measurement and a DAC for fine current control to optimize motor performance.

RISC-V MCU
    The RISC-V MCU with embed flash makes Software Defined Controller (SDC) possible. It gives customer great flexibility and compatibility for different batch and type actuators

Efficient H-Bridge Driver
    The on-chip single-channel H-bridge driver can directly drive motors to achieve efficient linear motion control, suitable for applications like Auto Focus (AF) and Optical Image Stabilization (OIS).

High-Speed I²C Communication
    Supports the I²C bus protocol with speeds up to 3.4 MHz, enabling fast data exchange with the main MCU and improving system responsiveness.

Wide Operating Voltage Range
    Supports wide voltage operation to meet various low-power application requirements.

Application Scenarios

The SFM8801 is ideal for high-precision motor driving and position sensing, particularly for camera modules in mobile devices. It supports APOIS (Application Processor Optical Image Stabilization), enhancing image stability for mobile photography. Additional application areas include:

• Auto Focus (AF) and Optical Image Stabilization (OIS) Motors

• AR/VR Precision Focusing Systems

• Medical Micro-Actuation Devices

• Smart Wearable Devices

• Microrobot Motion Control

• Intelligent Surveillance & Industrial Vision Modules

Product Advantages

• Software Defined Controller (SDC)

• HighlyIntegrated: Combines Hall sensor, ADC, DAC, H-bridge driver, and memoryinto one chip to simplify system development.

• High-Precision Position Sensing: Accurately detects linear magnetic motion for faster andmore precise motor control.

• Low Power,High Performance: Suitable for power-sensitive devices like smartphones and wearables.

• High-Speed Communication: High-speed I²C interface ensures rapid data transmission and improves system efficiency.

As a new-generation high-performance motor driver solution, the SFM8801 demonstrates broad application potential in the precision motor domain, delivering efficient and stable motion control for various high-end electronic devices.