DRV201

更新时间： 2025-08-31 09:55:39

品牌	Logo	应用领域
德州仪器 - TI		驱动器电机摄像机
页数	文件大小	规格书
17页	387K
描述
VOICE COIL MOTOR DRIVER FOR CAMERA AUTO FOCUS

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DRV201 数据手册

DRV201

www.ti.com

SLVSB25 –AUGUST 2011

VOICE COIL MOTOR DRIVER FOR CAMERA AUTO FOCUS

Check for Samples: DRV201

FEATURES

•

Operating Temperature Range: -40ºC to 85ºC

6-Ball WCSP Package With 0.4-mm Pitch

Max Die Size: 0.8 mm x 1.48 mm

•

Configurable for Linear or PWM Mode VCM

Current Generation

•

High Efficiency PWM Current Control for VCM

Advanced Ringing Compensation

Package Height: 0.15 mm

APPLICATIONS

Integrated 10-bit D/A Converter for VCM

Current Control

•

Cell Phone Auto Focus

Digital Still Camera Auto Focus

Iris/Exposure Control

Security Cameras

•

Protection

–

Open and Short-Circuit Detection on VCM

Pins

–

Undervoltage Lockout (UVLO)

Thermal Shutdown

Web and PC Cameras

Actuator Controls

Open and Short Circuit Protection on VCM

Output

–

Internal Current Limit for VCM Driver

•

I²C Interface

DESCRIPTION

The DRV201 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 DRV201 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.

FUNCTIONAL BLOCK DIAGRAM

Cin

VBAT

OSCILLATOR

REFERENCE

10-bit

DAC

POR

ISOURCE

DIGITAL

VCM

REGISTERS

I2C

RINGING

ISINK

COMPENSATION

SCL

SDA

sense

GND

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas

Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

12 3 4 5 6 7...17

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