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A8439

Part Number	A8439
Manufacturer	Allegro MicroSystems
Description	Photoflash Capacitor Charger
Published	Mar 14, 2007
Detailed Description	www.DataSheet4U.com A8439 Photoflash Capacitor Charger with IGBT Driver and Refresh Features and Benefits ▪ ▪ ▪ ▪ ▪ ▪ ...
Datasheet	A8439 PDF File

Overview

www.
DataSheet4U.
com A8439 Photoflash Capacitor Charger with IGBT Driver and Refresh Features and Benefits ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ Power with 1 Li+ or 2 Alkaline/NiMH/NiCAD batteries Adjustable output voltage Auto-refresh >75% efficiency Eight-level, digitally-programmable current limit Charge complete indication Integrated IGBT driver with trigger No primary-side Schottky diode needed Low-profile package (0.
75 mm nominal height) Description The A8439 is a highly integrated IC that charges photoflash capacitors for digital and film cameras.
An integrated MOSFET switch drives the transformer in a flyback topology.
It also features an integrated IGBT driver that facilitates the flash discharge fun...

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