View L7207_1262427.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

L7207
Dual mode disk drive spindle and VCM motor driver
Data Brief
General features

Dual operative mode (Desktop and Mobile) Register based architecture Serial communication interface up to 40 MHz
Spindle driver

3A peak current drive capability Internal power devices with 0.5 max bridge impedance at 125C. ST SmoothDrive architecture Inductance sense start-up capability Current sensing via integrated sense FET
TQFP64
VCM driver

2.4A peak current drive capability Internal power devices with 0.5 max bridge impedance at 125C Linear and PSM VCM driving Dual 14-bit linear DACs for current command Power on/off ramp load and unload capability Voltage retract mode
Description
L7207 is a motor controller IC designed for both desktop and dobile hard disk drive applications. The spindle motor driver subsystem integrates all power FETs driven by ST's SmoothDrive commutation technology. The voice coil driver block includes the power FETs, as well as ramp load and unload capability. Linear voltage and switching regulators are included, as well as a negative regulator and power monitoring function. L7207 embeds a serial interface with a maximum speed of 40 MHz.
Other functions

2 linear regulators. Programmable switching regulator Negative switching regulator Internal isolation FET Voltage monitoring Power On Reset with integrated delay Shock sensor circuitry 8-bit ADC with multiplexed inputs Thermal sense circuit and over temperature shutdown
April 2006
Rev 1
1/3
www.st.com 3
For further information contact your local STMicroelectronics sales office.
Revision history
L7207
1
Revision history
Table 1.
Date 20-Apr-2006
Document revision history
Revision 1 Initial release. Changes
2/3
L7207
Please Read Carefully:
Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries ("ST") reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST's terms and conditions of sale. Purchasers are solely responsible for the choice, selection and use of the ST products and services described herein, and ST assumes no liability whatsoever relating to the choice, selection or use of the ST products and services described herein. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted under this document. If any part of this document refers to any third party products or services it shall not be deemed a license grant by ST for the use of such third party products or services, or any intellectual property contained therein or considered as a warranty covering the use in any manner whatsoever of such third party products or services or any intellectual property contained therein.
UNLESS OTHERWISE SET FORTH IN ST'S TERMS AND CONDITIONS OF SALE ST DISCLAIMS ANY EXPRESS OR IMPLIED WARRANTY WITH RESPECT TO THE USE AND/OR SALE OF ST PRODUCTS INCLUDING WITHOUT LIMITATION IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE (AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION), OR INFRINGEMENT OF ANY PATENT, COPYRIGHT OR OTHER INTELLECTUAL PROPERTY RIGHT. UNLESS EXPRESSLY APPROVED IN WRITING BY AN AUTHORIZE REPRESENTATIVE OF ST, ST PRODUCTS ARE NOT DESIGNED, AUTHORIZED OR WARRANTED FOR USE IN MILITARY, AIR CRAFT, SPACE, LIFE SAVING, OR LIFE SUSTAINING APPLICATIONS, NOR IN PRODUCTS OR SYSTEMS, WHERE FAILURE OR MALFUNCTION MAY RESULT IN PERSONAL INJURY, DEATH, OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE.
Resale of ST products with provisions different from the statements and/or technical features set forth in this document shall immediately void any warranty granted by ST for the ST product or service described herein and shall not create or extend in any manner whatsoever, any liability of ST.
ST and the ST logo are trademarks or registered trademarks of ST in various countries. Information in this document supersedes and replaces all information previously supplied. The ST logo is a registered trademark of STMicroelectronics. All other names are the property of their respective owners.
(c) 2006 STMicroelectronics - All rights reserved STMicroelectronics group of companies Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan Malaysia - Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States of America www.st.com
3/3

▲Up To Search▲

Price & Availability of L7207

	To Download L7207 Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .