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Announcement: HMI appreciates everyone who stopped by our booth at APEC 2024. We look forward to connecting again soon!


The DW9787 is a general purpose SMA OIS controller and driver IC for the camera module. This consists of built-in MCU, embedded flash memory, SRAM, and the PWM controller to drive SMA actuators.

For more detailed description of the device, please download a product brief.


  • 4-wire SMA driver
  • Internal 32-bit MCU
    • SMA OIS servo controller
    • Gyro sensor filter
  • Driver
    • PWM sink driver (4ch)
  • Memory
    • eFlash of 64KB (32KB is for MCU program, and 32KB is for sensor calibration and others)
    • SRAM of 32KB and 8KB
  • Peripherals
    • ADC: 12bit for resistance and temperature sensing
    • DAC: 8bit for offset adjusting of OpAmp
    • SPI master or slave I/F (4 or 3-wire serial I/F)

Block Diagram

DW9787 - HMI Main Photo

For more information or a full datasheet request, please contact the factory at

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