High Efficiency, Wide Voltage Range 30-LED RGB Driver

  • Wide input range: 2.7V~22V
  • Drive up to 30 LEDs
  • High efficiency LED driver
  • High frequency step-up converter (800kHz)
  • Highly integrated solution
    • Integrated 40V Power MOSFET
    • Internal compensation and soft start
  • 3 Independent integrated current sinks
    • High accuracy regulation up to 20mA
    • 1.5% Typ. current matching
  • 3 independent PWM control inputs
  • PWM dimming with <1µs rise/fall time
  • Low operating quiescent current (500µA)
  • LED open/short protection
  • Both internal fixed and external adjustable Over-voltage protection
  • Cycle-by-cycle inductor current limit (2.5A)
  • 0.1 µA shutdown current
  • Pb-free Package: TQFN33-16
  • -40 to +85˚C Temperature Range

Applications

  • Smartphone
  • PDA
  • GPS
  • Portable media players
  • Other 1-cell Li Ion LED applications

Key Electrical Specifications

Vin(Min) Vin(Max) Max. Current per Channel Channels Control Type Package
2.7V 5.5V 20mA 3 PWM  TQFN33-16

Typical Application Diagram

KTD325