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.

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* 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
PART NUMBER Product Name Package Datasheet Distribution Inventory
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BU64980AGWZ Linear Constant Current VCM Driver UCSP25L1   inquiry
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BU64243GWZ Linear Constant Current VCM Driver UCSP35L1   Buy Sample
BU64244GWZ 2-wire Serial Interface Lens Driver For Voice Coil Motor UCSP35L1   inquiry
BU64249GWX 2-wire Serial Interface Lens Driver For Voice Coil Motor UCSP11X1   Buy Sample
New Products:
ROHM Semiconductor reserves the right to change the specifications at any time.
Technical Data
Thermal Resistance

The definition and how to use thermal resistance and thermal characterization parameter of packages for ROHM’s integrated circuit are described in this application note.