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The DW9827C is motor driver for camera autofocus. DW9827C includes internal hall, digital PID controller, 16K byte NVM for user, 32 Byte free access memory, 1 channel H-bridge, A/D converter and D/A converter for driving of internal Hall sensor.

The DW9827C operates from a single 2.65V to 3.6V supply. It is controlled via an I2C serial interface that operates at clock rate up to 3.4MHz.

The DW9827C can be used for auto focus applications in mobile cameras, digital still cameras, camcorders, web cameras and action cameras.

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


  • Supply voltage: 2.65V to 3.6V
  • Fast Mode, Fast Mode plus and HS mode I2C Interface
  • 1.2V I2C Interface available
  • Reverse I2C interface available
  • H-Bridge driver
  • Hall sensor calibration
  • Internal FRA test mode
  • Internal Loop Gain adjust
  • Internal AF settling time and coil resistance measure
  • Smart-Auto-Lens-hold (SAL) function for shaking noise reduction
  • High resolution Analog-to-Digital Converter (ADC)
  • PID Controller
  • 16Kbyte user NVM, 32 Byte free access memory
  • Package: 6 pins WLCSP (0.86mm X 1.50mm X 0.315mm)

Block Diagram

DW9827C - HMI Main Photo

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

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