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
  • SC442
  • 10-Channel, Integrated, High Efficiency 120 White LED Driver
  • SC443
  • High Efficiency Integrated Boost Driver for 3-Strings of 30mA LEDs
  • SC446
  • High Efficiency Integrated Driver for 3-Strings of 100mA LEDs
Semtech SC652

Semtech SC652

Charge Pump LED Driver for 5BL + PWM Interface

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The SC652 is a high effi ciency 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
  • Charge pump modes — 1x, 1.5x and 2x
  • PWM dimming control with low pass fi lter provides
  • DC backlight current (not pulsed)
  • PWM frequency range — 200Hz to 50kHz
  • Five 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 — 2 x 2 x 0.6(mm)
  • Fully WEEE and RoHS compliant

Applications


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

Packaging

MLPQ-UT-14

Order Codes

  • SC652ULTRT: Backlight Driver for 5 LEDs with Charge Pump and PWM Control
 
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