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Semtech SC628A

Semtech SC628A

Charge Pump LED Driver for 1000mA Flash + I2C Interface

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The SC628A 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. The load and supply conditions determine whether the charge pump operates in 1x, 1.5x, or 2x mode.

Features


  • Input supply voltage range — 3.0V to 5.5V
  • Charge pump modes — 1x, 1.5x and 2x
  • Flash LED — 1000mA max in fl ash mode, 275mA max continuous for spotlight
  • Charge pump frequency — 250kHz
  • I2C compatible interface — up to 400kHz
  • External flash control pin to sync with camera
  • One second flash time out with disable feature
  • Automatic sleep mode (fl ash 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 flash
  • PDA flash

Packaging

MLPQ-UT-20

Order Codes

  • SC628AULTRT: Lead-Free, WEEE and RoHS Compliant, 3000 pcs, Tape and Reel only.
 
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