MAX14515B

The MAX14515B high-voltage liquid lens driver features a high-voltage differential output controlled through an I²C interface. The MAX14515B uses a charge-pump-based boost converter and integrated H-bridge to provide a compact lens driver solution with minimal external components to achieve a small overall footprint suitable for small space constraints inside camera modules.

The MAX14515B features an 8-bit monotonic DAC with a single differential high-voltage output controlled by a 2-wire I²C interface to set the amplitude. The high-voltage outputs are capable of delivering up to 48VRMS (max) into a 200pF liquid lens load at 1.0kHz (min).

The MAX14515B also features two power-saving modes (shutdown mode and sleep mode) to minimize power consumption when the device is inactive. Shutdown mode places the device in a low-power state that resets all registers and disables the I²C interface to reduce current below 500nA (max). In sleep mode, the power-on reset circuit remains active. If no activity is detected on the I²C interface, current consumption is less than 3μA.

The MAX14515B operates over the +2.7V to +5.5V supply voltage range, ideal for portable applications using lithium-ion (Li+) battery sources. The MAX14515B is specified over the -40°C to +125°C extended temperature range and is available in a small (1mm x 2mm) 8-bump wafer-level package (WLP).

APPLICATIONS

• Automotive Camera Systems
• Camera Actuators (Drones, Machine Vision)
• Security/Action/Mobile Robotic Camera Systems