A8425 - High Current Photoflash Capacitor Charger

Product Overview

Allegro

Part number	A8425
Manufacturer	Allegro
File Size	439.72 KB
Description	High Current Photoflash Capacitor Charger
Datasheet	A8425 Datasheet
Additional preview pages of the A8425 datasheet.

The A8425 charges photoflash capacitors for digital cameras, camcorders, and DSC combos.

An integrated 55 V DMOS switch drives the transformer in a flyback topology optimized for 2-cell Li+ battery input.

Wide battery voltage range: 1.5 to 11 V.
Integrated 55 V DMOS switch in very thin profile 3 mm × 3 mm, 0.75 mm nominal height package.
Peak current limit continuously adjustable from 1.0 to 3.2 A.
Output voltage sensing on primary side: no resistor divider required.
>75% efficiency.
Fast charge time.
Charge Complete indication.
Flexible, high current IGBT drive.
Independent IGBT driver supply.
Separate sink and source pins with 6 Ω pull-up and 2.

📁 Similar Datasheet

A8430 - White LED Driver Constant Current Step-up Converter (Allegro MicroSystems)
A8431 - White LED Driver Constant Current Step-up Converter (Allegro MicroSystems)
A8434 - 6-Channel High Efficiency Charge Pump White LED Driver (Allegro MicroSystems)
A8435 - High Efficiency Charge Pump White LED Driver (Allegro MicroSystems)
A8436 - Photoflash Capacitor Charger (Allegro MicroSystems)
A8437 - Mobile Phone Xenon Photoflash Capacitor Charger (Allegro MicroSystems)
A8438 - Photoflash Capacitor Charger (Allegro MicroSystems)
A8439 - Photoflash Capacitor Charger (Allegro MicroSystems)

Other Datasheets by Allegro

Published: Jan 8, 2025 |