Ultra Small Mobile Phone Xenon Photoflash Capacitor Charger With IGBT Driver

The Allegro® A8732 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. This has the additional benefit of reducing leakage currents on the secondary side of the transformer. To extend battery life, the A8732 features very low supply current draw (0.5 μA max in shutdown mode). The Switch current limit CAN be programmed from 0.45 to 1.5 A, in 16 steps with single wire Interface through the CHARGE pin. The IGBT driver also has internal Gate resistors for minimum external component count. The charge and trigger voltage Logic thresholds are set at 1 VHI (min) to support applications implementing low-voltage control Logic The A8732 is available in an 8-contact 2 mm × 2 mm DFN/MLP package with a 0.60 maximum overall package height, and an exposed pad for enhanced thermal performance. It is lead (Pb) free with 100% matte tin leadframe plating. By Allegro MicroSystems, Inc.
A8732 's PackagesA8732 's pdf datasheet

A8732 Pinout, Pinouts
A8732 pinout,Pin out
This is one package pinout of A8732,If you need more pinouts please download A8732's pdf datasheet.

A8732 Application circuits
A8732 circuits
This is one application circuit of A8732,If you need more circuits,please download A8732's pdf datasheet.

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