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A8437 Datasheet Mobile Phone Xenon Photoflash Capacitor Charger

Manufacturer: Allegro MicroSystems

Overview: A8437 Mobile Phone Xenon Photoflash Capacitor Charger with IGBT Driver Discontinued Product This device is no longer in production. The device should not be purchased for new design applications. Samples are no longer available. Date of status change: March 4, 2013 Remended Substitutions: For existing customer transition, and for new customers or new applications, contact Allegro Sales. NOTE: For detailed information on purchasing options, contact your local Allegro field applications engineer or sales representative. Allegro MicroSystems, Inc. reserves the right to make, from time to time, revisions to the anticipated product life cycle plan for a product to acmodate changes in production capabilities, alternative product availabilities, or market demand. The information included herein is believed to be accurate and reliable. However, Allegro MicroSystems, Inc. assumes no responsibility for its use; nor for any infringements of patents or other rights of third parties which may result from its use.

General Description

The Allegro® A8437 Xenon photoflash charger IC is desi

Key Features

  • Low quiescent current draw (0.1 μA in shutdown mode).
  • Primary-side output voltage sensing; no resistor divider required.
  • User-adjustable current limit from 0.4 to 1.2 A.
  • 1.1 V logic (VHI(min)) compatibility.
  • Integrated IGBT driver with separate sink and source (CG package) or common sink/source (EJ package).
  • Flash dual trigger with interlock for increased noise immunity.
  • Optimized for mobile phone, 1-cell Li+ battery.

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