poLight has developed three different actuated autofocus devices based on a patented technology using its optical MEMS and polymer. This technology is to be integrated in camera modules based on 1/5” to 1/2.5” sensor format, reaching 5MP to 12MP and higher resolutions.
The SX8750 driver, designed for capacitive and piezoelectric actuator, is optimized for poLight TLens' new technology, enabling faster auto-focus, enhanced image quality and a smaller form factor camera module. The SX8750 platform combines high voltage and ultra-fast driver technology with ultra-low current consumption from 3V with no external coil. These unique features combine to drive MEMS based actuators for a larger camera resolution and a true real-time auto-focus, now up to 20x faster than traditional VCM technology, at a fraction of the power consumption. The IC draws less than 5mW averaged in active mode and with 1 uA listen mode current consumption. It features an I2C controlled 10-bit differential DAC for precise focus. For application in mobiles and smart phone camera modules, the chip allows for 1ms settling time with Tlens.
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