LED Drivers
  • SC653
    • Charge Pump LED Driver for 4BL + 2LDO + SemPulse Interface
  • SC657
    • Charge Pump LED Driver for 5BL + SemPulse Interface
  • SC658
    • Charge Pump LED Driver for 4BL + SemPulse Interface
  • SC656
    • Charge Pump LED Driver for 7BL + Dual PWM Interfaces
  • SC446
    • High Efficiency Integrated Driver for 3-Strings of 100mA LEDs
  • SC441C
    • High Efficiency Integrated Driver for 4-Strings of 150mA LEDs
  • 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 SC654

Semtech SC654

Charge Pump LED Driver for 6BL + SemPulse Interface

The SC654 is a high efficiency charge pump LED driver using Semtech’s proprietary charge pump technology. Performance is optimized for use in single-cell Li-ion battery applications.

Features


  • Input supply voltage range — 2.9V to 5.5V
  • Very high effi ciency charge pump driver system with
    three modes — 1x, 1.5x and 2x
  • Six programmable current sinks — 0mA to 25mA
  • Up to three LED grouping options
  • Fade-in/fade-out feature for main LED bank
  • Charge pump frequency — 250kHz
  • SemPulse single wire interface
  • Backlight current accuracy — ±1.5% typical
  • Backlight current matching — ±0.5% typical
  • LED fl oat detection
  • Automatic sleep mode (LEDs off ) — IQ = 60μA (typ.)
  • Shutdown current — 0.1μA (typical)
  • Ultra-thin package — 2 x 2 x 0.6 (mm)
  • Fully WEEE and RoHS compliant

Applications


  • Cellular phones, smart phones, and PDAs
  • LCD modules
  • Portable media players
  • Digital cameras
  • Personal navigation devices
  • Display/keypad backlighting and LED indicators

Packaging

MLPQ-UT-14

Order Codes

  • SC654ULTRT: Lead-Free, WEEE and RoHS Compliant, 3000pcs Tape and Reel Only