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DRV201A

DRV201A Series

100mA Voice Coil Motor Lens Driver with Ringing Compensation for Camera Autofocus

Manufacturer: Texas Instruments

Catalog

100mA Voice Coil Motor Lens Driver with Ringing Compensation for Camera Autofocus

Key Features

Configurable for Linear or PWM Mode VCMCurrent GenerationHigh Efficiency PWM Current Control for VCMAdvanced Ringing CompensationIntegrated 10-bit D/A Converter for VCM CurrentControlProtectionOpen and Short-Circuit DetectionUndervoltage Lockout (UVLO)Thermal ShutdownInternal Current Limit for VCM Driver4-kV ESD-HBMI2C InterfaceImproved PWM-to-Linear Mode Setting Time vs.DRV201Improved EMC Performance vs. DRV201Improved PWM-to-Linear Mode Settling Time vs.DRV201Improved EMC Performance vs. DRV201Operating Temperature Range: –40°C to 85°C6-Ball WCSP Package With 0.4-mm PitchMax Die Size: 0.806 mm × 1.49 mmMax Package Height: 0.3 mmConfigurable for Linear or PWM Mode VCMCurrent GenerationHigh Efficiency PWM Current Control for VCMAdvanced Ringing CompensationIntegrated 10-bit D/A Converter for VCM CurrentControlProtectionOpen and Short-Circuit DetectionUndervoltage Lockout (UVLO)Thermal ShutdownInternal Current Limit for VCM Driver4-kV ESD-HBMI2C InterfaceImproved PWM-to-Linear Mode Setting Time vs.DRV201Improved EMC Performance vs. DRV201Improved PWM-to-Linear Mode Settling Time vs.DRV201Improved EMC Performance vs. DRV201Operating Temperature Range: –40°C to 85°C6-Ball WCSP Package With 0.4-mm PitchMax Die Size: 0.806 mm × 1.49 mmMax Package Height: 0.3 mm

Description

AI
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 current in the VCM, the lens ringing is compensated with an advanced ringing compensation function. Ringing compensation reduces the needed time for auto focus significantly. The device also has VCM short and open protection functions. 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 current in the VCM, the lens ringing is compensated with an advanced ringing compensation function. Ringing compensation reduces the needed time for auto focus significantly. The device also has VCM short and open protection functions.