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AS3635 Xenon Flash Driver

Xenon flash charger, IGBT driver


  • Accurate high voltage generation
  • 5V charge pump


  • High performance Xenon flash
  • IGBT drive voltage is independent of battery voltage

Product parameters

Topology XENON, flyback
DC-DC Frequency [MHz]
Performance (ILed Max.) [mA]
- [Vout Max.] 330 (in circuit trimmable)
LED Channels [Curr. Sinks]
- [Curr. Source]
- [Flash LEDs]
- [Indicator LED]
Interfaces [I²C]
- [Enable]
Safety Features [TimeOut]
- [TXMask]
Package WL-CSP-9 (1.5×1.5), pitch 0.5

General Description

The AS3635 is a highly integrated photoflash charger with built-in IGBT driver. A build in 5V charge pump guarantees constant IGBT drive at any battery voltage. The built-in timer turns off the charge pump 20 seconds after charging. In circuit fuse trimming allows to set the voltage on the photoflash capacitor to ±3% accuracy.

This product suits for the following applications:

  • High-end mobile phones
  • Small digital still cameras

Technical Documents

Name Type Description Version Language
AS3635_BD000260_1-00.png Block Diagram AS3635 Block Diagram 1-00 English
AS3635_DS000370_1-00.pdf Datasheet Document version 1-49 1-00 English
AS11xx_AS13xx_AS17xx_AS349x_AS36xx_EN000160_1-00.pdf EoL Notification AS11xx_AS13xx_AS17xx_AS349x_AS36xx (issued 2018-Oct) 1-00 English
AS3635_UG000178_1-00.pdf User Guide Demo board 1-00 English

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