Product category: Power Supply ICs and Controllers
News Release from: Catalyst Semiconductor | Subject: CAT3612
Edited by the Electronicstalk Editorial Team on 19 April 2006
Camera flash LED driver
is easy to program
A 300mA camera flash LED driver reduces system complexity by providing full programmability of all flash functions from a single microcontroller pin
Catalyst Semiconductor has expanded its family of LED drivers with the CAT3612, a fully programmable 300mA camera flash LED driver. The CAT3612 combines Catalyst's recently introduced, flexible 1-Wire EZDim programming along with a tightly matched pair of high power output channels to accommodate the flash brightness requirements of today's increasing megapixel camera phones - all in a space-saving 3 x 3mm TDFN package.
This article was originally published on Electronicstalk on 19 April 2006 at 8.00am (UK)
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The CAT3612 reduces system complexity by providing full programmability of all flash functions, including setting enable/disable and brightness level of the flash function, from a single microcontroller pin via Catalyst's 1-wire EZDim programming interface.
Designers have maximum control of current and brightness with 32 programmable output power levels for setting flash (strobe) and movie (torch) modes.
Traditional flash LED devices typically offer very limited, predefined and preset brightness values for flash/movie modes, whereas the CAT3612 offers fine resolution programming (5mA steps per channel) to meet specific system requirements.
Additionally, dual, tightly matched output channels make the device ideal for camera flashes using multi-LED modules or single, high-brightness LEDs.
The CAT3612 maximises battery life with an automatic 1x/1.5x charge pump which delivers up to 90% power efficiency.
When disabled, the device enters 'zero' current shutdown mode, eliminating battery drain when not in use.
Protection against short-circuit and thermal overload fault conditions is also included.
A low-profile 0.8mm RoHS-compliant 3 x 3mm TDFN package, low external parts count and fixed high frequency (1MHz) operation all contribute to the reduction of system board area.
The CAT3612 is offered in a RoHS-compliant, environment friendly 'green' 3 x 3mm TDFN 12-lead package.
Ordering code is CAT3612HV4 and pricing for 10,000 piece quantity is $1.06.
Samples and evaluation kits are available now.
Projected lead-times for production quantities are currently 6 to 8 weeks ARO.
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