|
|
|
|
Voice Coil Motor Driver comes with I²C serial interface.
November 6, 2007 -
Designed for camera auto focus and zoom applications, Model A3904 features 2.4-5.5 V operating voltage range, 127 mA maximum output current, and -40 to +85°C operating temperature range. Output current is programmed via I²C interface in 500 µA increments with clock rates up to 400 kHz, while I2C inputs set internal DAC output voltage used as reference for linear current control using MOSFET output sink transistor.
(Archive News Story - Products mentioned in this Archive News Story may or may not be available from the manufacturer.) |
|
|
| |
| |
|
|
|
Newsletters |
Your Gateway to a Fast
Changing World
Product News Alerts |
 |
Receive similar stories and other customized
news to keep you in the know on the products shaping
industry. |
Subscribe Free Today
Subscribe View
Sample |
Industry
Market Trends
Has Got It |
- Latest developments
- Trends
- Best practices
- Opinions & Commentary
|
 |
Get Ahead.
Get IMT.
Subscribe Free Today
Subscribe View
Sample |
|
|
|
|
Allegro MicroSystems, Inc. Announces New Low Voltage Voice Coil Motor Driver with I2C Interface
High Accuracy Digital Motor Current Control in an Extremely Small Package.
Worcester, MA, October 4, 2007 - Allegro announces the first device in a series of voice coil motor drivers with I2C serial interface designed for camera auto focus and zoom applications. The operating voltage range is 2.4 V to 5.5 V and the maximum output current is 127 mA. Allegro's A3904 internal protection features include thermal shutdown and under voltage lockout. Logic input levels are independent of the supply voltage and the operating temperature range is -40°C to +85°C.
Output current is programmed via the I2C interface in 500 µA increments with clock rates up to 400 kHz. I2C inputs set the internal DAC output voltage used as a reference for linear current control using a MOSFET output sink transistor. A logic low input on the SLEEPZ input will put the A3904 into sleep mode and reduce the supply current to <0.5 µA.
The A3904 is supplied at three levels of packaging: 6-contact DFN package (suffix EW) with thin profile (0.38 mm nominal overall height) and exposed tab for enhanced thermal dissipation, bare die form on wafer (suffix CW), and 6-ball wafer level chip scale (WLCSP) bumped package (suffix CG). All package options are Pb (lead) free. The EW and CW packages are available now. Samples of the CG are currently available and production shipments are expected to begin in December 2007.
Targeted at the consumer, telecommunications, industrial and office automation markets, this new device is priced at $0.57 in quantities of 1,000 and has a 12 week typical lead-time to market.
About Allegro
Allegro MicroSystems, Inc. is leader in developing, manufacturing and marketing high-performance power integrated circuits and integrated Hall-effect magnetic sensors. Allegro's innovative solutions serve high-growth applications within the automotive, communications, computer/office automation, consumer and industrial markets. Allegro is headquartered in Worchester, Massachusetts (USA) with design and applications center located in North and South America, Asia, and Europe. Further information about Allegro can be found at www.allegromicro.com .
Allegro MicroSystems, Inc.,
115 Northeast Cutoff,
Worcester, MA 01606
United States
Contacts:
Marketing:
Stephanie A. Fennelly Communications Manager
USA
Phone: 508- 854-5363
 E-mail this person
Company Information:
Name: Allegro MicroSystems Inc.
Address: 115 N.E. Cutoff, P.O. Box 15036
City: Worcester
State: MA
ZIP: 01615
Country: USA
Phone: 508-853-5000
FAX: 508-853-5049
http://www.allegromicro.com
|
|
|
|
|
 |
ThomasNet News Advertisers
|
|
|
del.icio.us
DIGG
Facebook
Reddit
StumbleUpon
Twitter![[Get Copyright Permissions]](http://license.icopyright.net/images/icopy-w.gif){kind=small}
