●General Description

The BU64291GWZ is designed to drive voice coil motors (VCM) and operate with PWM to improve system power efficiency or switch to linear control to improve system noise. The driver includes ISRC (intelligent slew rate control) to reduce mechanical ringing to optimize the camera’s auto focus capabilities.

●Features

2.3 V (Min.) driver power supply

Selectable linear and PWM operational modes

Current source and sink output

10 bit resolution current control

ISRC mechanical ringing compensation

2-wire serial interface

Integrated current sense resistor

●Applications

Auto focus of Cell Phone

Auto focus of Digital still camera

Camera Modules

Lens Auto focus

Web, Tablet and PC cameras