• SC445
  • 150mA 4-strings高效集成驱动器LED
  • SC440
  • 30mA LED 6-strings高效的集成驱动器
  • SC440A
  • 30mA LED 6-strings高效集成驱动器
  • SC441A
  • 150mA的LED高效集成驱动器4-strings AEC - Q100标准合格
  • SC441C
  • 150mA的LED -高电压输入4-strings高效集成驱动器
  • SC442
  • 10频道,综合效率高120,白色LED驱动器
  • SC443
  • 30mA LED 3-Strings高效集成的升压驱动器
  • SC446
  • 100mA的LED 3-strings高效集成驱动器
Semtech SC656

Semtech SC656

Charge Pump LED Driver for 7BL + Dual PWM Interfaces


The SC656 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.


  • Input supply voltage range — 2.9V to 5.5V
  • Charge pump modes — 1x, 1.5x and 2x
  • PWM dimming control with low pass filter provides
  • DC backlight current (not pulsed)
  • Two independently configurable backlight banks
  • PWM frequency range — 200Hz to 50kHz
  • Seven adjustable current sinks — 500μA to 25mA
  • Backlight current accuracy ±1.5% typical
  • Backlight current matching ±0.5% typical
  • LED float detection
  • Charge pump frequency — 250kHz
  • Low shutdown current — 0.1μA typical
  • Ultra-thin package — 3 x 3 x 0.6(mm)
  • Fully WEEE and RoHS compliant, and Halogen free.


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



Order Codes

  • SC656ULTRT: Lead Free, WEEE and RoHS Compliant, Halogen Free, 3,000 pcs, Tape and Reel Only
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