KTD2681 Flash LED Driver with Programmable 1.5A Current Source

• Description

Description

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