DRV201A

Product Folder Sample & Buy Technical Documents Tools & Software Support & Community DRV201A SLVSBN6A – JUNE 2013 – REVISED AUGUST 2015 DRV201A Voice Coil Motor Driver for Camera Auto Focus 1 Features 1 Configurable for Linear or PWM Mode VCM Current Generation High Efficiency PWM Current Control for VCM Advanced Ringing Compensation Integrated 10-bit D/A Converter for VCM Current Control Protection – Open and Short-Circuit Detection – Undervoltage Lockout (UVLO) – Thermal Shutdown – Internal Current Limit for VCM Driver – 4-kV ESD-HBM I2C Interface Improved PWM-to-Linear Mode Setting Time vs. DRV201 Improved EMC Performance vs. DRV201 Improved PWM-to-Linear Mode Settling Time vs. DRV201 Improved EMC Performance vs. DRV201 Operating Temperature Range: -40ºC to 85ºC 6-Ball WCSP Package With 0.4-mm Pitch Max Die Size: 0.806 mm × 1.49 mm Max Package Height: 0.3 mm 2 Applications Cell Phone Auto Focus Digital Still Camera Auto Focus Iris and Exposure Controls Security Cameras Web and PC Cameras Actuator Controls 3 Description The DRV201A is an advanced voice coil motor driver for camera auto focus. It has an integrated D/A converter for setting the VCM current. VCM current is controlled with a fixed frequency PWM controller or a linear mode driver. Current generation can be selected via I2C register. The DRV201A has an integrated sense resistor for current regulation and the current can be controlled through I2C. When changing the cu...