KTD2694 2MHz, 1.5A Flash LED Driver

2MHz, 1.5A Flash LED Driver

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Features

  • Drive up to 1.5A flash current
  • Programmable threshold low-voltage input protection
  • High efficiency converter (up to 90%)
  • Input voltage range: 2.7V to 5.5V
  • 2MHz step-up converter
  • Very small inductor: 1.0μH to 2.2μH
  • Very small load capacitor: 4.7μF to10μF
  • ExpressWireTM digital control enables and programs flash and movie current in 16 steps
  • External resistor sets maximum flash current
  • Integrated thermal regulation control
  • 2mA LED shorting test current and 1.7V forward voltage threshold
  • LED open/short protection
  • Over-voltage protection
  • Cycle-by-cycle inductor current limit
  • Programmable Flash Time out protection 0.1μA shutdown current
  • Pb-free Package: UDFN22-10L
  • -40°C to +85°C Temperature Range

Applications

  • Mobilephones
  • Smart Phones and PDAs
  • Digital Still Cameras

Key Electrical Specifications

 Vin(Min)   Vin(Max)   Max. Current Per Chanel(Max)  Channels  Control Type Package
2.7V 5.5V 1500mA 1 ExpressWire  UDFN22-10

Typical Application Diagram

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