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Applications > VCM Motor

VCM Motor

With the upgrade of imaging systems in smartphones, Auto Focus (AF) and Optical Image Stabilization (OIS) have become key technologies for enhancing the user photography experience. Our VCM (Voice Coil Motor) driver chip series includes Open-Loop AF, Closed-Loop Auto Focus (CLAF), Independent OIS Controllers, and APOIS solutions, offering high-precision, low-power, and fast-response imaging enhancement experiences.


Product Categories & Solution Analysis

📷 Open-Loop Auto Focus (AF)
  • Cost-effectiveand highly compatible, ideal for entry-level camera modules
  • Supportsau to focus functionality in smartphone cameras
  • Compatiblewith VCM driver architectures for wide camera module adaptability
  • TypicalApplications:
    • Front-facing smartphone cameras
    • Entry-level rear cameras

📸 Closed-Loop Optical Image Stabilization (OIS)

  • Real-time feedback control for accurate focus and stabilization
  • UtilizesHall/TMR sensor feedback for precise VCM positioning
  • Suitablefor flagship smartphone rear camera modules
  • Typical Applications:
    • Rear main cameras (OIS supported)
    • Periscope telephoto cameras

🎯 Independent OIS Controller Chips

  • Built-inRISC-V computing engine running OIS algorithms independently
  • Local OISdata processing without relying on the AP (Application Processor),improving real-time stabilization
  • High-precisionADC paired with Hall/TMR sensors for optimized VC/OIS performance
  • TypicalApplications:
    • Rear main cameras (with independent OIS)
    • High-end telephoto cameras

🔗 AP OIS (AP-Processed OIS Solutions)

  • Cost-optimizedsolution using AP to compute OIS feedback
  • Depends onAP for OIS data processing, ideal for cost-sensitive designs
  • UtilizesSi Hall sensor and high-precision ADC for position detection
  • TypicalApplications:
    • Mid-to-high-end smartphone cameras
    • Cost-effective OIS imaging solutions


💡 Product Advantages

✅ Pin-to-pin compatible with competitor solutions, enabling seamless replacement and reducing migration cost
✅ High-precision closed-loop feedback, low-power design, optimized image stabilization
✅ Supports multiple protocols like I²C for flexible integration


📌 Product Recommendation

Model

Control Method

Feedback Type

Application Scenario

Compatibility

SFM8801

Closed-Loop

Hall Sensor

X/Y-axis Stabilization

Pin-to-pin compatible


🌟 Why Choose Us?

🔹 Pin-to-Pin Compatibility: Seamless replacement for mainstream competitor products, reducing switching cost
🔹 High Precision & Low Power: High-performance ADC/DAC with integrated Hall sensor for precise control and reduced power consumption
🔹 Flexible Motor Support: Compatible with VCM and Piezo actuators to meet diverse imaging requirements


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