AS3642
AS3642 is Ultra Small 500mA Inductive White LED Flash Driver manufactured by austriamicrosystems.
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Ultra Small 500mA Inductive White LED Flash Driver
1 General Description
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/autofocus) and indicator mode.
The AS3642 includes flash timer, overvoltage, overtemperature, undervoltage and LED short circuit protection functions.
The AS3642 is able to detect a broken coil. Together with the LED short and open detection the AS3642 can be used to verify the connection to its...
