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KTD2692

2MHz, 1.5A Flash LED Driver

        • 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 to 10μF

        • 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 Timeout protection 0.1µA shutdown current

        • Pb-free Package: TDFN2x3-14

        • -40˚C to +85˚C Temperature Range

Applications

  • Mobile Phones

  • Smart Phones and PDAs

  • Digital Still Cameras

Key Electrical Specifications

Vin(Min) Vin(Max) Max. Current per Channel Channels Control Type Package
2.7V 5.5V 1500mA 1 ExpressWire  TDFN23-14

Typical Application Diagram

KTD2692

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