Description

KTD2690 is the ideal power solution for high-power flash LEDs. The highly integrated synchronous boost converter and current source can support up to 1.5A flash and up to 376mA torch current. The device provides a very small total solution in a portable application. It has both I²C interface and hardware STROBE pin for maximum control flexibility. The integrated current source on/off and current settings in Flash/Torch/IR modes can be programmed by the I²C interface. A selectable input low voltage protection function can prevent a system reset under low battery conditions.

Various protection features are integrated into KTD2690, including cycle-by-cycle input current limit protection, output overvoltage protection, LED fault (open or short) protection, flash timeout protection, and thermal shutdown protection.

KTD2690 is available in a RoHS and Green 8-ball 1.519mm x 0.808mm x 0.500mm WLCSP package with 0.35mm pitch. Please contact a Sales Representative for the 10-lead 2mm x 2mm x 0.55mm UDFN package option.

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 (please contact Sales Representative for UDFN option)
• -40°C to 85°C Operating Temperature Range

Applications

• Smartphones and Tablets
• IR LED Driver
• Digital Cameras

Packaging Information

Parameters

Technical Documentation

Purchase