AS3649 2500mA High Current LED Flash Driver 1 General Description The AS3649 is an inductive high efficient DCDC step up converter with two current sources.
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 two current sources can operate in flash / torch or video light modes.
The AS3649 includes flash timeout, overvoltage, overtemperature, undervoltage and LED short/open circuit protection functions.
A TXMASK/TORCH function reduces the flash current in case of parallel operation to the RF power amplifier and avoids a system shutdown.
Alternatively this pin can be used to directly operate...

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