SC440: High Efficiency Integrated Driver for 6-Strings of 30mA LEDs

The SC440 is a high-efficiency multiple string WLED driver with an integrated boost converter. It operates over a wide input range from 4.5V to 21V with a maximum output voltage of 36V and a 2.5A internal power switch.

To request a complete datasheet, email: salesinfo@semtech.com.


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Features

  • Wide input range 4.5V to 21V
  • 36V maximum output voltage with adjustable OVP for smaller output capacitor
  • Drives up to 60 WLEDs in 6 strings
  • Programmable WLED current for up to 30mA per string
  • 1% string-to-string current matching
  • 2.0A min. 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
  • WEEE & RoHS compliant

Diagrams

Typical Application Circuit

SC440 - Typical Application Circuit

Click diagram to enlarge

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 (4X4 mm)

Order Codes

  • SC440MLTRT: Lead-free, RoHS and WEEE compliant, 3000 pcs. Tape & Reel
Order Sample Button
Pb-Free/RoHS/WEEE Status

Related Documents

Datasheets