BU64295GWZ-TR ROHM

Datasheet Bi-directional VCM driver for Auto focus BU64295GWZ BU64296GWX General Description Key Specifications The BU64295GWZ and BU64296GWX are designed to Power Supply Range: 2.3V to 4.8V drive Bi-directional voice coil motors. Additionally the Standby Current: 70A (Typ) drivers are able to source the output current without the Internal Resistance: 2.0(Typ) need for a direction control signal. The drivers include Master Clock: 2MHz (Typ) ISRC (intelligent slew rate control) to reduce mechanical Maximum Output Current: +100mA, -100mA (Typ) ringing to optimize the cameras autofocus capabilities. Temperature Range: -25C to +85C Features Bi-directional Constant Current Driver Packages 10 bit Resolution Current Control ISRC Mechanical Ringing Compensation 2 BU64295GWZ 2-wire Serial Interface (I C compatible) Integrated Current Sense Resistor W (Typ) x D (Typ) x H (Max) UCSP30L1 0.77mm x 1.2mm x 0.33mm Applications Mobile Camera Module Bi-directional VCM Actuators BU64296GWX W (Typ) x D (Typ) x H (Max) UCSP16X1 0.77mm x 1.2mm x 0.20mm Typical Application Circuit Figure 1. Typical Application Circuit Product structureSilicon monolithic integrated circuit This product is not designed protection against radioactive rays . www.rohm.com TSZ02201-0H2H0B601060-1-2 2013 ROHM Co., Ltd. All rights reserved. 1/15 TSZ2211114001 13. Nov.2014 Rev.003DatasheetDatasheet BU64295GWZ BU64296GWX Pin Configuration Figure 2. Pin Configuration (Top View) Pin Descriptions Pin No. Symbol Function A1 GND Ground A2 VDD Power supply voltage B1 Isink Output terminal B2 Isource Output terminal C1 SDA 2-wire serial interface data input C2 SCL 2-wire serial interface clock input Block Diagram VDD Power save VREF TSD OUTPUT Isource Control A Direction SCL Control 10 bit LOGIC & OUTPUT DAC SDA Pre driver Control B Isink POR Current + Sense - GND Figure 3. Block Diagram www.rohm.com TSZ02201-0H2H0B601060-1-2 2013 ROHM Co., Ltd. All rights reserved. 2/15 TSZ2211115001 13. Nov.2014 Rev.003