Lens motor are used for surveillance camera and web camera. The requirements for these applications are small size, low power consumption, and low acoustic noise. Nuvoton lens motor driver has the functions for hall-iris control and zoom/focus control in one package that allows the design of a circuit board for a smaller camera. In addition, the hall-iris position control operates with low power consumption and low acoustic noise by our unique digital circuit technology, compared with conventional configuration of discrete components. Easy settings through SPI communication contribute to your platform development of lens module.