California Micro Devices Launches Industry's Smallest Flash LED Driver for Mobile Handsets
December 12 2006 - 9:29AM
PR Newswire (US)
PhotonIC(R) CM9410 and CM9412 Offer Highly Efficient and High
Performance Drive Capabilities in Tiny Footprint MILPITAS, Calif.,
Dec. 12 /PRNewswire-FirstCall/ -- California Micro Devices
(NASDAQ:CAMD) today unveiled a new family of PhotonIC white LED
drivers capable of supporting a wide range of high current flash
LEDs in today's most advanced handsets. California Micro Devices'
CM9410 and CM9412 feature current drive capabilities of up to 1A,
high efficiency and multiple operating modes that can be programmed
via a digital single wire control interface. The CM9410 is offered
in a 0.4mm pitch chip scale package (CSP), which results in a
solution form factor that is five times smaller than equivalent
solutions. The CM9412 is housed in a 3mm x 3mm TDFN (Thin DFN)
package. (Photo:
http://www.newscom.com/cgi-bin/prnh/20061212/SFTU072 ) Evolving
Application Requirements As camera resolution increases and picture
quality becomes a key criterion for camera phone users, powerful
camera flash capabilities are needed to take full advantage of high
resolution imagers. In addition, wireless handset designers are
facing major challenges in terms of power consumption, battery
life, space constraints and cost. Therefore, significant emphasis
needs to be put on optimizing the efficiency and footprint of the
LED subsystem, specifically for camera flash circuitry. Key
Features The CM9410 and CM9412 support a voltage input range of
3.0V to 5.5V and feature a typical efficiency of 85 percent. They
offer various modes of operation including shutdown, torch and two
flash modes that can be selected through a user friendly single
wire interface. Preview and flash currents can be programmed
independently via external resistors. Timeout setting is also
programmable for flash modes. Both products offer a drive
capability of up to 1A to support a powerful flash with high
resolution camera sensors. The typical switching frequency is 1MHz
and typical shutdown current is less than 0.3uA. These products
also feature overcurrent and overvoltage protection as well as
undervoltage lockout and a soft start to limit inrush current.
Application Both products address the requirement for high drive
capability for camera flash applications. The following two figures
show application diagrams for the CM9410 and CM9412 respectively.
Four modes selectable via SWC (Single Wire Interface) are
available, including shutdown, torch (preview), Flash1 and Flash2.
The following table describes the current for each state: EN state
CM9410 Current CM9412 Current Shutdown 0 0 Preview(Torch) 12% of
Flash2 Current set by Rpr Flash1 70% of Flash2 70% of Flash2 Flash2
Current set by Rfl Current set by Rfl Pricing and Availability
Evaluation boards and chip samples of the CM9410 and CM9412 are
available now. Chip pricing starts at $1.00 in 1,000 unit
quantities. Volume production is scheduled for Q1 2007. About
California Micro Devices Corporation California Micro Devices
Corporation is a leading supplier of application specific analog
and mixed signal semiconductor products for the mobile handset,
digital consumer electronics and personal computer markets. Key
products include Application Specific Integrated Passive(TM)
protection devices for mobile handsets, digital consumer
electronics products such as digital TVs and personal computers as
well as analog and mixed signal ICs for mobile handset displays.
Detailed corporate and product information may be accessed at
http://www.cmd.com/. NOTE: PhotonIC(R) is a registered trademark of
California Micro Devices Corporation. Application Specific
Integrated Passive(TM) and FlexBoost(TM) are trademarks of
California Micro Devices. All other trademarks are property of
their respective owners.
http://www.newscom.com/cgi-bin/prnh/20061212/SFTU072
http://photoarchive.ap.org/ DATASOURCE: California Micro Devices
CONTACT: Richard Haas of California Micro Devices, +1-408-934-3108,
or Web site: http://www.calmicro.com/
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