BU64241GWZ-E2 ROHM

Datasheet Linear Constant Current VCM Driver BU64241GWZ General Description Key Specifications The BU64241GWZ is designed to drive voice coil motor Power supply range 2.3 to 4.8 V (VCM). The driver includes ISRC (intelligent slew rate Standby current 0 A (typ.) control) to reduce mechanical ringing to optimize the Internal resistance 1.5 (typ.) cameras auto focus capabilities. Master clock 400 kHz (typ.) Output maximum current 130 mA (typ.) Features 2.3 V min driver power supply Current sink output 10 bit resolution current control Package ISRC mechanical ringing compensation 2-wire serial interface W (Typ.) D (Typ.) H (Max.) Integrated current sense resistor UCSP30L1 1.30 mm 0.77 mm 0.33 mm Applications Autofocus in mobile camera modules Driving VCM actuators Typical Application Circuit 0.1 to 10F VCC VCC VCC PS Power Save TSD & UVLO Band Gap GPIO I SINK HOST OUT SDA 2-wire Serial Bus 2-wire Interface Pre-driver serial & Master Ringing Control SCL 10 V/I OSC 10 bit DAC Convertor RNF Band Gap VREF 1.8V GND Figure 1. Typical Application Circuit Product structureSilicon monolithic integrated circuit This product is not designed protection against radioactive rays . www.rohm.com TSZ02201-0H2H0B600460-1-2 2012 ROHM Co., Ltd. All rights reserved. 1/20 TSZ2211114001 01. Jul. 2013 Rev.004DatasheetDatasheet BU64241GWZ Pin Configuration 1 2 3 A PS SDA SCL B OUT GND VCC Figure 2. Pin configuration (TOP VIEW) Pin Description Ball Name Function PS Power save SDA Serial data input SCL Serial clock input OUT Current output GND Ground VCC Power supply voltage Block Diagram VCC VCC Power Save PS TSD & UVLO Band Gap OUT 2-wire serial Bus SDA Interface Pre-driver & SCL Ringing Control 10 V/I OSC 10 bit DAC Convertor RNF Band Gap VREF GND Figure 3. Block Diagram www.rohm.com TSZ02201-0H2H0B600460-1-2 2012 ROHM Co., Ltd. All rights reserved. 2/20 TSZ2211115001 01. Jul. 2013 Rev.004