Integrated Circuits

iC-WKN SO8-TP

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CW Driver for N-Type Laser Diodes

yiC-WKN SO8-TP

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iC-WKN SO8-TP

Product description

iC-WKN is a driver for laser diodes in continuous wave operation with laser currents of up to 300 mA, which requires only four external components. The wide power supply range of up to 15 V allows for operation of direct green laser diodes.

The iC includes a soft start of the regulator to protect the laser diode when the power supply is switched on. The iC also filters the laser diode power supply for transients.

Features

  • CW operation up to 300 mA from 2.4 to 15 V supply voltage
  • Fast soft start after power-on typical within 70 µs
  • Optimised for N-type laser diodes
  • Simple output power adjustment via an external resistor (APC)
  • Power control loop accuracy better than 1.5% with changes in temperature, supply voltage and load current
  • Integrated reverse polarity protection for the iC and laser diode
  • Strong suppression of transients with very small external capacitors; integrated flyback path
  • Permanent shut-down 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 (N/P/M configurations)
  • Modulation via the feedback inputs is possible
  • Wide monitor current range from 2.5 µA to 6.25 mA
  • Pin compatible to iC-WK and iC-WKL (SO8 package)

Applications

  • Laser diode modules
  • Laser levels

Download technical documentation:

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