High Efficiency, Wide Voltage Range High Current, LED Controller

Features

  • Wide range input voltage up to Vout
  • Wide range IC bias input: 4.5V~30V
  • Capable of driving over 80 LEDs in one string
  • High efficiency LED driver (up to 95%)
  • 8V gate drivers for external Power MOSFETs
  • Adjustable switching frequency
  • Adjustable current limiting
  • Adjustable loop compensation
  • Adjustable softstart and slope compensation
  • Wide PWM dimming frequency range
  • Very accurate LED current
    • KTD353:+/-3%
    • KTD353A:+/-2%
  • Stable with small ceramic output capacitance
  • LED string short to ground protection
  • LED short and open protection
  • Boost converter output short to GND protect
  • Output over-voltage protection
  • Pb-free Package: SOIC-16 and TQFN33-16
  • -40 to +85˚C Temperature Range

Applications

  • LCD TV and monitors
  • LED lighting
  • Other LED applications

Key Electrical Specifications

Vin(Min) Vin(Max) Maximum # of LED  Channel  Channels Control Type Package
2.7V 5.5V 80 1 PWM SOIC-16, TQFN3x3-16

Typical Application Diagram

KTD353