LED Drivers
  • SC5014A
    • High Efficiency 2-Channel HB LED Driver with I2C Interface and Direct PWM Dimming
  • SC5014
    • High Efficiency 4-Channel HB LED Driver with I2C Interface and Phase-Shifted PWM Dimming
  • SC5010H
    • High Efficiency 8-Channel LED Driver with I2C Interface and Phase-Shifted PWM Dimming
  • SC5010
    • High Efficiency 8-Channel LED Driver with I2C Interface and Phase-Shifted PWM Dimming
  • SC658
    • Charge Pump LED Driver for 4BL + SemPulse Interface
  • SC656
    • Charge Pump LED Driver for 7BL + Dual PWM Interfaces
  • SC654
    • Charge Pump LED Driver for 6BL + SemPulse Interface
  • SC652
    • Charge Pump LED Driver for 5BL + PWM Interface
Semtech SC441D

Semtech SC441D

High Efficiency Integrated Driver for 4-Strings of 150mA LEDs

The SC441D is a high-efficiency multiple string WLED driver with an integrated boost converter. It operates over a wide input range from 4.5V to 27V with a maximum output voltage of 42V and a 3.0A internal power switch.

Features


  • Wide input voltage range from 4.5V to 27V
  • 42V maximum output voltage
  • Drives up to 40 WLEDs in 4 strings
  • Programmable LED current for up to 150mA per string
  • +/- 2% string-to-string current matching
  • Up to 90% efficiency
  • Wide 0.2% to 100% PWM dimming range
  • Possible analog dimming
  • Integrated 3.0A power switch
  • 700KHz switching frequency for small size
  • Adjustable OVP for cost-effective output cap selection
  • Open/short LED protection
  • Short LED protection disable
  • Thermal protection with auto-recovery
  • Thermally enhanced TSSOP-20 EDP package
  • Lead-free, Halogen-Free and WeEE/RoHS Compliant

Applications


  • Medium-sized LCD panel
  • Notebook Display
  • Automotive Car Navigation Display
  • Sub-Notebook and Tablet Computer Displays
  • Portable Media Players

Packaging

  • TSSOP-20 EDP

Order Codes

  • SC441DTETRT: Lead-free, WEEE and RoHS compliant and halogen-free