LED Drivers
  • SC653
    • Light Management Unit with 2 LDOs and SemPulse™ Interface
  • SC654
    • Light Management Unit for 6 LEDs with SemPulse™ Interface
  • SC657
    • Backlight LED Driver for 5 LEDs with SemPulse™ Interface
  • SC658
    • Backlight LED Driver for 4 LEDs with SemPulse™ Interface
  • SC652
    • Backlight LED Driver for 5 LEDs with Charge Pump and PWM Control
  • SC656
    • Backlight LED Driver for 7 LEDs with Charge Pump and PWM Control
  • EZ1587I
    • 3 Amp Positive Voltage Regulator
  • LCDA24
    • 24 V Low-Capacitance TVS Diode Array For High-Speed Data Interfaces
  • LCDA15C-8
    • 15 V Low-Capacitance, 8-Line TVS Array
  • SC561
    • Dual Output Low Noise LDO Linear Regulator
  • SC810
    • Single Input/Single Mode Single-cell Li-ion Battery Charger
  • SCDAS4F
    • Standard Recovery, High Current Center Tap and Doubler Rectifier Assemblies
Semtech SC440A

Semtech SC440A

High Efficiency Integrated Driver for 6-Strings of 30mA LEDs

The SC440A is a high-effi ciency 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 2A internal power switch.

Features

  • Wide input range 4.5V to 27V
  • 42V maximum output voltage with adjustable OVP for smaller output capacitor
  • Drives up to 72 WLEDs in 6 strings
  • Programmable WLED current for up to 30mA per string
  • 1% string-to-string current matching
  • 2A integrated power switch
  • Up to 91% efficiency
  • 0.2% to 100% PWM dimming
  • Analog dimming
  • 800KHz switching frequency for small external component
  • Open/short LED protection
  • Short LED protection disable
  • <1uA shut-down current
  • Thermal protection
  • 4mm x 4mm x1mm MLPQ-24 package (Pb-free, Halogen free, WEEE & RoHS compliant)

Applications

  • Medium-sized LCD panel
  • Notebook Display
  • White LED Power Supplies
  • Sub-Notebook and Tablet Computer Displays
  • Portable Media Players
  • LCD Monitors
  • Digital Video Cameras

Packaging

  • MLPQ-24

Order Codes

  • SC440AMLTRT: Lead-free, Halogen free, WEEE & RoHS compliant 3000 pcs, Tape And Reel Only