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Contents

1

Introduction

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3

1.1

Description

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3

1.2

Applications

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3

1.3

Features

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3

2

System Overview

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4

3

Hardware Overview

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5

3.1

Connectors

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6

3.2

Jumpers

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6

3.3

Test Points

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6

3.4

EVM Operation

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6

4

Software

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7

4.1

Software Installation Instructions

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7

5

EVM Schematic

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9

6

PCB layout

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10

7

Bill of Materials

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12

2

DRV201 Evaluation Module

SLVU528 – March 2012

Submit Documentation Feedback

Copyright © 2012, Texas Instruments Incorporated

Содержание DRV201

Страница 1: ...ntegrated sense resistor for current regulation and the current can be controlled through I2 C 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 has also VCM short and open protection functions The following related documents are available for downl...

Страница 2: ...ware Overview 5 3 1 Connectors 6 3 2 Jumpers 6 3 3 Test Points 6 3 4 EVM Operation 6 4 Software 7 4 1 Software Installation Instructions 7 5 EVM Schematic 9 6 PCB layout 10 7 Bill of Materials 12 2 DRV201 Evaluation Module SLVU528 March 2012 Submit Documentation Feedback Copyright 2012 Texas Instruments Incorporated ...

Страница 3: ...pensation function Ringing compensation reduces the needed time for auto focus significantly The device has also VCM short and open protection functions 1 2 Applications Camera auto focus Camera Iris control 1 3 Features 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 curren...

Страница 4: ... installation More information in GUI installation section USB to I2 C adapter DRV201EVM uses the I2 C interface for communication with the host The TI supplied USB to I2 C adapter shown in Figure 3 USB to GPIO adapter does the appropriate conversion so the host can use the USB interface for communication USB to I2 C adapter has a 3 3 V supply rail which is used to supply the EVM so no external po...

Страница 5: ...hich acts as an I2 C master for the board The DRV201EVM provides the following functionality Programming of the DRV201 device R_VCM and L_VCM are meant as a model of a typical VCM actuator electrical parameters Driving either external VCM connected to ISOURCE and ISINK headers or using on board inductor and resistor see jumper setting Standard 400 kHz I2 C communication via I2 C connector to USB a...

Страница 6: ... supply selection Connect to pins 1 2 when using Pins 1 2 power from USB P2 3 3 V from the USB interface adapter and pins 2 3 if external interface adapter power supply is used R_VCM and L_VCM are connected between DRV201 pins JP1 and JP2 jumpers JP1 andJP2 ISOURCE and ISINK If jumpers are not connected VCM actuator connected can be connected between ISOURCE and ISINK 3 3 Test Points The DRV201EVM...

Страница 7: ... html 4 1 Software Installation Instructions To install the EVM software follow the steps outlined Copy the DRV201EVM zip to your computer and extract all files Double click on the setup exe file in the Installer Volume directory Follow the prompts to finish the installation At the end of the installation a reboot of your computer may be required Figure 5 setup exe File Located in the Volume Direc...

Страница 8: ...Software www ti com Figure 6 DRV201EVM GUI Main Figure 7 DRV201EVM GUI Basic 8 DRV201 Evaluation Module SLVU528 March 2012 Submit Documentation Feedback Copyright 2012 Texas Instruments Incorporated ...

Страница 9: ...www ti com EVM Schematic 5 EVM Schematic 9 SLVU528 March 2012 DRV201 Evaluation Module Submit Documentation Feedback Copyright 2012 Texas Instruments Incorporated ...

Страница 10: ...PCB layout www ti com 6 PCB layout Figure 8 DRV201EVM Board Layer 1 TOP 10 DRV201 Evaluation Module SLVU528 March 2012 Submit Documentation Feedback Copyright 2012 Texas Instruments Incorporated ...

Страница 11: ...www ti com PCB layout Figure 9 Board Layer 4 BOTTOM 11 SLVU528 March 2012 DRV201 Evaluation Module Submit Documentation Feedback Copyright 2012 Texas Instruments Incorporated ...

Страница 12: ...onic 1 R_VCM 15 Ω Resistance to model VCM 2010 MCR50JZHJ150 Rohm 1 L_LCVM 100 µH Inductance to model VCM NR4018T101M Taiyo Yuden 1 J1 Terminal Block 2 x 3 5 mm ED555 2DS On Shore 1 P1 Header 2x5 1 P2 Header 1x3 2 JP1 JP2 Header 1x2 4 U1 IC Autofocus driver DRV201 TI 12 DRV201 Evaluation Module SLVU528 March 2012 Submit Documentation Feedback Copyright 2012 Texas Instruments Incorporated ...

Страница 13: ... notice contains important safety information about temperatures and voltages For additional information on TI s environmental and or safety programs please contact the TI application engineer or visit www ti com esh No license is granted under any patent right or other intellectual property right of TI covering or relating to any machine process or combination in which such TI products or service...

Страница 14: ...ency energy and has not been tested for compliance with the limits of computing devices pursuant to part 15 of FCC or ICES 003 rules which are designed to provide reasonable protection against radio frequency interference Operation of the equipment may cause interference with radio communications in which case the user at his own expense will be required to take whatever measures may be required t...

Страница 15: ... its gain should be so chosen that the equivalent isotropically radiated power e i r p is not more than that necessary for successful communication This radio transmitter has been approved by Industry Canada to operate with the antenna types listed in the user guide with the maximum permissible gain and required antenna impedance for each antenna type indicated Antenna types not included in this l...

Страница 16: ...er you obtained the Technical Regulations Conformity Certification as provided in Radio Law of Japan with respect to this product Also please do not transfer this product unless you give the same notice above to the transferee Please note that if you could not follow the instructions above you will be subject to penalties of Radio Law of Japan Texas Instruments Japan Limited address 24 1 Nishi Shi...

Страница 17: ... property damage personal injury or death If there are questions concerning these ratings please contact a TI field representative prior to connecting interface electronics including input power and intended loads Any loads applied outside of the specified output range may result in unintended and or inaccurate operation and or possible permanent damage to the EVM and or interface electronics Plea...

Страница 18: ...regulatory and safety related requirements concerning its products and any use of TI components in its applications notwithstanding any applications related information or support that may be provided by TI Buyer represents and agrees that it has all the necessary expertise to create and implement safeguards which anticipate dangerous consequences of failures monitor failures and their consequence...

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