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A8437 - Mobile Phone Xenon Photoflash Capacitor Charger

General Description

The Allegro® A8437 Xenon photoflash charger IC is designed to meet the needs of ultra-low power, small form factor cameras, particularly camera-phones.

The charge current time is adjustable by setting the charge current limit from 0.4 to 1.2 A maximum.

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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Full PDF Text Transcription for A8437 (Reference)

Note: Below is a high-fidelity text extraction (approx. 800 characters) for A8437. For precise diagrams, and layout, please refer to the original PDF.

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...

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ice 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 Recommended 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 accommodate changes in production capabilities, alternative

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