AS3643 - 1300mA High Current LED Flash Driver

austriamicrosystems

Datasheet Details

Part number	AS3643
Manufacturer	austriamicrosystems
File Size	3.47 MB
Description	1300mA High Current LED Flash Driver
Datasheet	AS3643-austriamicrosystems.pdf

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 |