AS3643 - 1300mA High Current LED Flash Driver

Product Overview

austriamicrosystems

Part number	AS3643
Manufacturer	austriamicrosystems
File Size	3.47 MB
Description	1300mA High Current LED Flash Driver
Datasheet	AS3643 Datasheet
Additional preview pages of the AS3643 datasheet.

The AS3643 is an inductive high efficient DCDC step up converter with two current sinks.

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 1300mA.
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 |