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Datasheet
Linear Constant Current VCM Driver
BU64241GWZ
●General Description The BU64241GWZ is designed to drive voice coil motor (VCM). 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 ■ Current sink output ■ 10 bit resolution current control ■ ISRC mechanical ringing compensation ■ 2-wire serial interface ■ Integrated current sense resistor
●Key Specifications ■ Power supply range ■ Standby current ■ Internal resistance ■ Master clock ■ Output maximum current
2.3 to 4.8 V 0 µA (typ.) 1.5 Ω (typ.)
400 kHz (typ.) 130 mA (typ.)
●Package UCSP30L1
W (Typ.) ×D (Typ.) ×H (Max.) 1.30 mm × 0.77 mm × 0.33 mm
●Applications ■ Autofocus in mobile camera modules ■ Driving VCM actuators
●Typical Application Circuit
GPIO
HOST
2s-ewriiarel
Master
PS SDA SCL
0.1 to 10µF
VCC
Power Save
2-wire Serial Bus Interface .