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iC-WKN - N-Type CW Laser Driver

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App Notes
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APPLICATIONS

  • LD modules
  • LD pointers
  • Pilot lasers
  • Laser levels
  • Barcode readers
  • Distance measuring sensors

FEATURES

  • CW operation up to 300mA from 1.4 to 15V supply voltage.
  • Rapid soft start after power-on typical within 70µs.
  • Simple power adjustment via external resistor.
  • Control loop accuracy better than 1.5% with changes in temperature, supply voltage and load current.
  • Integrated reverse polarity protection for the iC and LD.
  • Strong suppression of transients with very small external capacitors; integrated flyback path.
  • Permanent shutdown with excessive temperature and overcurrent (i.e. if the laser diode is damaged or the feedback current path fails).
  • Two feedback inputs permit all current LD types to be used (M/P/N configurations).
  • Modulation via the feedback inputs is possible.
  • Wide monitor current range from 2.5µA to 6.25mA.
  • Pin compatible to iC-WK and iC-WKL.

PACKAGES

iC-WKN package iC-WKN package
DFN10 SO8
WK4D package
WK4D

BLOCK DIAGRAM

Click image to enlarge iC-WKN block diagram

SELECTION GUIDE

iC-WKN selection guide
 





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