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AS3647 Datasheet - austriamicrosystems

AS3647-austriamicrosystems.pdf

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Datasheet Details

Part number:

AS3647

Manufacturer:

austriamicrosystems

File Size:

3.54 MB

Description:

1600ma high current led flash driver.

AS3647, 1600mA High Current LED Flash Driver

The AS3647/47B is an inductive high efficient DCDC step up converter with two current sinks.

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 two current sinks can operate in flash / torch / assi

AS3647 Features

* 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

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