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AS3647B

Part Number	AS3647B
Manufacturer	austriamicrosystems
Description	1600mA High Current LED Flash Driver
Published	Feb 18, 2015
Detailed Description	valid Datasheet AS3647/47B 1600mA High Current LED Flash Driver 1 General Description The AS3647/47B is an inductive ...
Datasheet	AS3647B PDF File

Overview

valid Datasheet AS3647/47B 1600mA High Current LED Flash Driver 1 General Description The AS3647/47B is an inductive high efficient DCDC step up converter with two current sinks.
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 sinks can operate in flash / torch / assist (=video) light modes.
The AS3647/47B includes flash timeout, overvoltage, overtemperature, undervoltage and LED short 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 c...

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