Innovelec

KTD2681 Flash LED Driver with Programmable 1.5A Current Source

Flash LED Driver with Programmable 1.5A Current Source

Description

Features

  • High efficiency synchronous boost converter with 2MHz/4MHz switching frequency option
  • I2C interface programming and hardware STROBE/TORCH control
  • Two-channel independent current sources
    • LED1: Up to 1.5A (7 bits)
    • LED2: Up to 0.75A (6 bits)
    • Flash/Torch/IR modes
    • Independent LED on/off and current settings
    • Programmable ramp shape and time control
    • Three input low voltage protection modes
    • Flash time-out protection
    • LED cathode ground connection for improved thermal dissipation
  • LED open/short protection
  • I2C fault read back (I2C address = 0x63)
  • 12-ball 1.30mm x 1.57mm WLCSP package with 0.4mm pitch.

Applications

  • Smartphones and Tablets Camera Flash
  • Digital Cameras

Key Electrical Specifications

Vin(Min) Vin(Max) Max. Current per Channel Channels Control Package
2.7V 5.5V 1500mA 1  I2C WLCSP34-12

Typical Application Diagram

KTD2681

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