LED Drivers
  • SC668
    • 8 LED Light Management Unit Automatic Dropout Prevention , Ambient Light Sense Input, PWM Dimming, and 4 LDOs
  • SC667
    • 7 LED Light Management Unit Automatic Dropout Prevention, Ambient Light Sense Input, PWM Dimming, and 4 LDOs
  • SC662
    • Backlight Driver for 6 LEDs with SemPulse® Interface
  • SC657
    • Charge Pump LED Driver for 5BL + SemPulse Interface
  • SC653
    • Charge Pump LED Driver for 4BL + 2LDO + SemPulse Interface
  • 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
  • SC4541
    • High Frequency LED Driver with Integrated Schottky and Simple Interconnect
Semtech SC441A

Semtech SC441A

High Efficiency Integrated Driver for 4-Strings of 150mA LEDs - AEC-Q100 Qualified

The SC441A 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.

The complete datasheet for this product is restricted. To request a complete copy of this datasheet, please fill out our Request for Information form.

Features


  • Wide input voltage range from 4.5V to 21V
  • 36V 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 2.5A power switch
  • 700KHz switching frequency for small size
  • Adjustable OVP for cost-effective output cap selection
  • Open/short LED protection
  • Thermal protection with auto-recovery
  • Thermally enhanced TSSOP-20 EDP package
  • Fully WEEE and RoHS compliant

Applications


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

Packaging

Order Codes

  • SC441ATETRT: Lead Free, WEEE and RoHS Compliant, 2500 pcs, Tape and Reel Only
  • SC441AEVB: SC441A Evaluation Board