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A8735 - Ultra Small Mobile Phone Xenon Photoflash Capacitor Charger

Description

The Allegro® A8735 is a Xenon photoflash charger IC designed to meet the needs of ultra low power, small form factor cameras, particularly camera phones.

By using primary-side voltage sensing, the need for a secondary-side resistive voltage divider is eliminated.

Features

  • Ultra small 2 × 2 DFN/MLP-8 package.
  • Low quiescent current draw (0.5 μA max. in shutdown mode).
  • Primary-side output voltage sensing; no resistor divider required.
  • Fixed 1 A peak current limit.
  • 1V logic (VHI(min)) compatibility.
  • Integrated IGBT driver with internal gate resistors.
  • Optimized for mobile phone, 1-cell Li+ battery.

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Datasheet preview – A8735

Datasheet Details

Part number A8735
Manufacturer Allegro Micro Systems
File Size 517.69 KB
Description Ultra Small Mobile Phone Xenon Photoflash Capacitor Charger
Datasheet download datasheet A8735 Datasheet
Additional preview pages of the A8735 datasheet.

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Full PDF Text Transcription

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www.DataSheet4U.com A8735 Ultra Small Mobile Phone Xenon Photoflash Capacitor Charger with IGBT Driver Features and Benefits ▪ Ultra small 2 × 2 DFN/MLP-8 package ▪ Low quiescent current draw (0.5 μA max. in shutdown mode) ▪ Primary-side output voltage sensing; no resistor divider required ▪ Fixed 1 A peak current limit ▪ 1V logic (VHI(min)) compatibility ▪ Integrated IGBT driver with internal gate resistors ▪ Optimized for mobile phone, 1-cell Li+ battery applications ▪ Zero-voltage switching for lower loss ▪ >75% efficiency ▪ Charge complete indication ▪ Integrated 50 V DMOS switch with self-clamping protection Description The Allegro® A8735 is a Xenon photoflash charger IC designed to meet the needs of ultra low power, small form factor cameras, particularly camera phones.
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