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Semtech SC624A

Semtech SC624A

Charge Pump LED Driver for 4BL + 2LDO + I2C Interface

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The SC624A is a high efficiency charge pump LED driver using Semtech’s proprietary mAhXLife™ technology. Performance is optimized for use in single-cell Li-ion battery applications.

Features


  • Input supply voltage range — 3.0V to 5.5V
  • Charge pump modes — 1x, 1.5x and 2x
  • Four programmable current sinks with 32 steps from 0.5mA to 25mA
  • Two user-configurable 100mA low-noise LDO regulators
  • Charge pump frequency — 250kHz
  • I2C compatible interface — up to 400kHz
  • Backlight current accuracy ±1.5% typical
  • Backlight current matching ±0.5% typical
  • Programmable fade-in/fade-out for main backlight
  • Automatic sleep mode (LEDs off ) — IQ = 100μA
  • Low shutdown current — 0.1μA (typical)
  • Ultra-thin package — 3mm x 3mm x 0.6mm
  • Fully WEEE and RoHS compliant

Applications


  • Cellular phone backlighting
  • PDA backlighting
  • Camera I/O and core power

Packaging

MLPQ-UT-20 (3 X 3 mm)

Order Codes

  • SC624AULTRT: Lead-free, RoHS and WEEE compliant, 3000 pcs. Tape & Reel
 
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