AS3642 Datasheet - austriamicrosystems

AS3642 Ultra Small 500mA Inductive White LED Flash Driver

The AS3642 is an inductive high efficient DCDC step up converter driving a current source. The DCDC step up converter operates at a fixed frequency of 4MHz and includes soft startup to allow easy integration into noise sensitive RF systems. The current source operates in flash/torch/assist (video/au.

AS3642 Features

* Total flash driver solution only 11mm2

* High efficiency 4MHz fixed frequency DCDC Boost converter with soft start allows small coils

* LED currents Up to 500mA flash current (15.6mA steps) Up to 320mA torch current (10mA steps) 1.35mA,2.9mA,4.4mA or 6mA indicator light current (PWM wi

AS3642-austriamicrosystems.pdf