Part number:
AS3644
Manufacturer:
austriamicrosystems
File Size:
1.45 MB
Description:
Ultra small low cost 320ma inductive.
AS3644-austriamicrosystems.pdf
Datasheet Details
Part number:
AS3644
Manufacturer:
austriamicrosystems
File Size:
1.45 MB
Description:
Ultra small low cost 320ma inductive.
AS3644, Ultra Small Low Cost 320mA Inductive
The AS3644 is an inductive high efficient DCDC step up converter driving a current source.
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.
The current source operates in flash/torch/assist (video/au
AS3644 Features
* 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:
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