Several LED vendors have announced products that approach the light intensity of a conventional Xenon flash, the de facto yet bulky standard in today’s high-resolution digital still cameras or smartphones.

But the adoption of LED flash in portable applications has been limited due to the high levels of battery current, forward voltage, and peak current required to produce this intensity. 

By storing the output of a boost convertor in a high-capacity supercapacitor, AnalogicTech’s AAT1282 allows designers to use WLEDs to deliver the high-intensity light needed for flash and video applications in high megapixel cameras without draining or damaging the battery.

The AAT1282 is AnalogicTech’s first 2A flash LED driver IC capable of delivering high intensity light from white LEDs (WLEDs).  Combining a high frequency boost converter with fixed input current limiting, dual output regulated current sinks and I2C control, the device uses a supercapacitor to deliver the high peak current needed to support the high intensity flash required for mobile phones featuring cameras with resolutions of 5 Megapixel and higher while protecting the battery.

Further information

For more details, contact Phil Dewsbury, AnalogicTech, on +44 (0) 1635 817 260 or phildewsbury@analogictech.com.