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A8438

Part Number	A8438
Manufacturer	Allegro MicroSystems
Description	Photoflash Capacitor Charger
Published	Mar 14, 2007
Detailed Description	com A8438 Package EJ: MLP/TDFN, 3 × 3 mm 0.75 mm nominal height Photoflash Capacitor Charger with IGB...
Datasheet	A8438 PDF File

Overview

...T Driver FEATURES Power with 1 Li+ or 2 Alkaline/NiMH/NiCAD batteries Adjustable output voltage >75% efficiency Three levels of switch current limit: 1.
6, 1.
8, 2.
0 A Fast charge time Charge complete indication Integrated IGBT driver with trigger No primary-side Schottky diode needed Low-profile package (0.
75 mm nominal height) Approximate Scale 1:1 The A8438 is a highly integrated IC that charges photoflash capacitors for digital and film cameras.
It also features an integrated IGBT driver that facilitates the flash discharge function and saves board space.
To charge the photoflash capacitor, the A8438 integrates a 40 V, DMOS switch that drives the transformer in a flyback topology, allowi...

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