LED Drivers
  • SC445
  • High Efficiency Integrated Driver for 4-Strings of 150mA LEDs
  • SC440
  • High Effi ciency Integrated Driver for 6-Strings of 30mA LEDs
  • SC440A
  • High Efficiency Integrated Driver for 6-Strings of 30mA LEDs
  • SC441A
  • High Efficiency Integrated Driver for 4-Strings of 150mA LEDs - AEC-Q100 Qualified
  • SC441C
  • High Efficiency Integrated Driver for 4-Strings of 150mA LEDs - High Voltage Input
  • SC443
  • High Efficiency Integrated Boost Driver for 3-Strings of 30mA LEDs
  • SC446
  • High Efficiency Integrated Driver for 3-Strings of 100mA LEDs
  • SC4505
  • High Efficiency Boost Converter for Backlight / Flash LED Driver
Semtech SC653

Semtech SC653

Charge Pump LED Driver for 4BL + 2LDO + SemPulse Interface

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The SC653 is a highly integrated light management unit that provides two low-noise LDOs, a multi-mode high efficiency charge pump, and four programmable LED drivers. Performance is optimized for use in single-cell Liion battery applications.

Features


  • Input supply voltage range — 2.9V to 5.5V
  • Four programmable current sinks with 29 steps from
    0mA to 25mA
  • Very high effi ciency charge pump driver system with
    three modes — 1x, 1.5x and 2x
  • One programmable 100mA low-noise LDO regulator
  • One programmable 150mA low-noise LDO regulator
  • Charge pump frequency — 250kHz
  • SemPulse single wire interface
  • Backlight current accuracy — ±1.5% typical
  • Backlight current matching — ±0.5% typical
  • Fade-in/fade-out feature for main backlight
  • Automatic sleep mode (LEDs off ) — IQ = 100μA
  • Shutdown current — 0.1μA (typical)
  • Ultra-thin package — 2.3 x 2.3 x 0.6 (mm)
  • Fully WEEE and RoHS compliant

Applications


  • Cellular phones, smart phones, and PDAs
  • LCD modules
  • Portable media players
  • Digital cameras and GPS units
  • Display backlighting and LED indicators

Packaging

MLPQ-UT-18

Order Codes

  • SC653ULTRT: Lead-Free, WEEE and RoHS compliant, 3000 pcs, Tape and Reel Only
 
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