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 SC614

Semtech SC614

Charge Pump LED Driver for 7BL (or 4BL+306mA Flash) + PWM & I2C Interfaces

The SC614 is a high efficiency charge pump LED driver using Semtech's proprietary mAhXLife™ technology. Performance is optimized for use in Li-ion battery applications.

Features


  • Four independent current sinks for main backlight, adjustable from 0.4mA to 32mA each
  • Dedicated MDIM pin for PWM dimming of main backlight
  • Three independent current sinks for sub-backlight or flash, adjustable from 0.4mA to 102mA each
  • Configurable sub-backlight or flash sinks
  • Dedicated SDIM pin for PWM dimming of subbacklight
  • Dedicated FL pin for flash control
  • Current accuracy to within ±1.5% down to 4.8mA
  • Current matching to within ±0.5% down to 4.8mA
  • Very high efficiency over 90% of battery life
  • Shutdown current 0.1μA (typ)
  • Three charge pump operating modes: 1x, 1.5x, and 2x
  • I2C serial interface
  • Soft-start/in-rush current limiting
  • 1.33MHz and 250kHz programmable fixed frequency options
  • Short-circuit/thermal protection
  • Output open circuit protection
  • MLPQ-24 package (4mm x 4mm), fully WEEE and RoHS compliant

Applications


  • Cellular phone backlighting and flash
  • LCD modules
  • PDA backlighting and flash
  • RGB LED Driver

Packaging

MLPQ-24 (4X4 mm)

Order Codes

  • SC614MLTRT: Lead-Free, RoHS and WEEE Compliant, Package Minimum Tape & Reel Only