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AS3630 LED Flash Driver

8A supercap LED flash driver

Features

  • Immediate torch functions with charging of the supercap
  • 4MHz fixed frequency DC-DC
  • 10-bit ADC for system monitoring with protection functions

Benefits

  • Reduce supercap size
  • Instantaneous torch operation for improved user experience
  • Tiny external coils
  • System safety

Product parameters

Topology Supercap
DC-DC Frequency [MHz] 4
Performance (ILed Max.) [mA] 8000
- [Vout Max.] 10
LED Channels [Curr. Sinks] 1
- [Curr. Source] High-side
- [Flash LEDs] 2
- [Indicator LED] 1
Interfaces [I²C] Yes
- [Enable] Yes
Safety Features [TimeOut] Yes
- [TXMask] Yes
Package WL-CSP25 (2.5x2.5)-0.5p

General Description

The AS3630 is a high efficient 4MHz dual DC-DC step-up converter to supply 8A LED flash. It supports the charging of a supercap, its voltage balancing and a highly efficient DC-DC step-up from the supercap to the LED and from VIN to the LED to power the flash LED with up to 8A. The system concept supports an immediate torch function without first charging the supercap. The AS3630 includes flash timeout, over- and undervoltage, overtemperature and LED short circuit protection.

This product suits for the following applications:

  • Flash/Torch for mobile phones
  • DSC
  • Tablets

Technical Documents

Name Type Description Version Language
AS3630_BD000259_1-00.png Block Diagram AS3630 Block Diagram 1-00 English
AS3630_DS000262_1-00.pdf Datasheet Document version 2013-Jun 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
AS3630_UG000219_1-00.pdf User Guide Demo board 1-00 English