Single Flash LED Driver with Programmable 1.5A Current Source

Features

  • High efficiency synchronous boost converter with 2MHz/4MHz switching frequency option
  • I2C interface programming and hardware STROBE control
  • Single-channel programmable current source
    • Flash/Torch/IR modes
      • Flash: Up to 1.5A (128 Levels)
      • Torch: Up to 375mA (128 Levels)
    • Input low voltage protection function
    • Flash time-out protection
    • LED cathode ground connection for improved thermal dissipation
  • LED open/short protection
  • I2C fault read back
  • RoHS and Green compliant
  • Pb-free Packages: WLCSP-8 or UDFN22-10L
  • -40°C to 85°C Operating Temperature Range

Applications

  • Smartphones and Tablets
  • IR LED Driver
  • Digital Cameras

Key Electrical Specifications

VIN (Min) VIN (Max) Max. Current per Channel Channels Control Type Package
2.7V 5.5V Flash: 1.5A
Torch: 375mA		 1 I2C  WLCSP-8
UDFN22-10

Typical Application Diagram

KTD2690