Summit Microelectronics announced the SMB274 programmable driver for the LensVector solid-state AutoFocus device. LensVector AutoFocus replaces the complex, bulky and often fragile mechanical autofocus mechanisms currently found in camera phones with a simple and easy-to-integrate solid-state component. The SMB274 is offered in a 1.34mm x 2.34mm, 15-ball WLCSP package. Samples and evaluation kits will be available later this quarter from Summit and LensVector.
Summit Microelectronics SMB274 Programmable Driver Features
- I2C/SMBus serial interface with OTP NV configuration
- Programmable device driver with integrated high-voltage charge pump and switching output
- +28V nominal output
- Programmable dynamic drive duration (0ms-255ms)
- Programmable frequency (100Hz-100kHz)
- Integrated temperature compensation
- Device heater with integrated charge pump and temperature control
- Standby and shutdown modes for ultra-low power operation
- +2.7 to +5.5V input for Li-Ion applications
- Tiny 1.34 x 2.34mm CSP-15 package
The SMB274 combines all the features and functions required to support the LVAF device operation. The autofocus driver is powered by an on-chip charge pump while integrated feedback signal processing optimizes performance and minimizes external components. To ease system integration the SMB274′s I2C/SMBus serial interface and non-volatile configuration options provide simple host control and flexibility to address various applications. Together these features allow seamless operation with existing and emerging autofocus control systems in mobile phone cameras.