AS3644 - Ultra Small Low Cost 320mA Inductive

austriamicrosystems

Datasheet Details

Part number	AS3644
Manufacturer	austriamicrosystems
File Size	1.45 MB
Description	Ultra Small Low Cost 320mA Inductive
Datasheet	AS3644-austriamicrosystems.pdf

The AS3644 is an inductive high efficient DCDC step up converter driving a current source.

Total flash driver solution only 11mm2.
High efficiency 4MHz fixed frequency DCDC Boost converter with soft start allows small coils.
LED currents 260mA to 320mA flash current (20mA steps) 51.6mA or 72.3mA Assist light (=torch) current.
Flash LED(s) cathode connected to ground: Improved thermal performance (ground = heat sink) Simplified PCB layout.
Adjustable Flash Timer 30ms to 480ms in 30ms steps.
Flash, Torch, Assist and Indicator Mode.
Protection function.

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Published: Feb 19, 2016 |