Linear/PWM Constant Current VCM Driver - BU64291GWZ (New)

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.

* This product is a STANDARD grade product and not recommend for on-vehicle devices.
Part number
Unit Quantity
Minimum Package Quantity
Packing Type
BU64291GWZ-TR Active UCSP30L1 6000 6000 Taping Yes
Grade Standard
Usage VCM
Interface I2C
Operating Temperature (Min.)[°C] -25
Operating Temperature (Max.)[°C] 85
    • 2.3V (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
Other New/Updated Products Relating to Motor / Actuator Drivers
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New Products:
ROHM Semiconductor reserves the right to change the specifications at any time.
Technical Data
Application Note

Thermal Resistance