AnalogicTech’s High Current WLED Flash Drivers Offer Smaller Alternative to Xenon Lamps

AnalogicTech's High Current WLED Flash Drivers Offer Smaller Alternative to Xenon Lamps

AnalogicTech has announced the AAT1271 and AAT1272 dual-channel boost converters featuring the company’s proprietary AS2Cwire and industry-standard I2C interface respectively.

Highly Flexible Converters Allow On-the-Fly Output Current Correction to Enhance Photo Quality

The additional addressing capability of these two buses offers designers tremendous flexibility to modify drive current, and therefore WLED brightness. At the same time, the boost converters’ high drive current and small 3×3-mm footprint delivers a highly attractive alternative to bulky xenon lamp solutions.

Increased Current Control Both the AAT1271 and AAT1272 are high efficiency, high current boost converters designed for LED photo flash applications. Operating off a 2.7V to 5.5V input voltage range, the two new devices are targeted at single-cell Lithium-ion battery powered mobile systems. Both converters use a high 2 MHz switching frequency which helps reduce system footprint by allowing the use of smaller external inductors and capacitors. The two new converters can achieve up to 85% efficiency with 1µH inductors.