ams AG - global leader in the design and manufacture of high performance analog ICs (integrated circuits)

AS3630 LED-flash Driver

8A Supercap LED-flash driver

 

The AS3630 is a high efficient 4MHz dual DCDC step up converter to supply 8A LED flash. It supports the charging of a Supercap, its voltage balancing and a highly efficient DCDC 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- undervoltage, overtemperature and LED short circuit protection.

Key Features

  • Immediate Torch functions with charging of the Supercap
  • 4MHz fixed frequency DCDC
  • 10bit ADC for system monitoring with protection functions

Key Benefits

  • Reduce Supercap size
  • Instantaneous Torch operation for improved user experience
  • Tiny external coils
  • System Safety

Product Facts

Topology Supercap
DC-DC frequ. [MHz] 4
Performance [ILed max] 8000mA
- [Vout max] 10
LED channels [Curr. sinks] 1
- [Curr. source] high-side
- [Flash LEDs] 2
- [Indicator LED] 1
Interfaces [I²C]
- [Enable]
Safety features [TimeOut]
- [TXMask]
Package WL-CSP25 (2.5x2.5)-0.5p

Additional Information

Applications
  • Flash/Torch for mobile phones
  • DSC
  • Tablets