AS3647B, AS3647 - 1600mA High Current LED Flash Driver

austriamicrosystems

Datasheet Details

Part number	AS3647B, AS3647
Manufacturer	austriamicrosystems
File Size	3.54 MB
Description	1600mA High Current LED Flash Driver
Datasheet	AS3647-austriamicrosystems.pdf
Note	This datasheet PDF includes multiple part numbers: AS3647B, AS3647. Please refer to the document for exact specifications by model.

The AS3647/47B 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 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 |