AS3647 - 1600mA High Current LED Flash Driver

Product Overview

austriamicrosystems

Part number	AS3647
Manufacturer	austriamicrosystems
File Size	3.54 MB
Description	1600mA High Current LED Flash Driver
Datasheet	AS3647 Datasheet
Additional preview pages of the AS3647 datasheet.

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.

High efficiency 4MHz fixed frequency DCDC Boost converter with soft start allows small coils - Stable even in coil current limit.
LED current adjustable up to 1600mA.
Automatic current adjustment for low battery voltage.
PWM operation for lower output current for reliable light output of the LED; running at 31.25kHz to avoid audible noise.
Protection functions: Automatic Flash Timeout timer to protect the LED(s) Overvoltage and undervoltage Protection Overtemperature Pr.

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Published: Feb 18, 2015 |