iC-WKP SO8-TP

CW-Driver for P-Type Laser Diodes

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Product description

iC-WKP is a driver for laser diodes in continuous wave (CW) operation with laser currents of up to 350 mA from a wide power supply range of up to 15 V which requires only four external components. The driver is optimised for P-type laser diodes and allows the connection of the laser diode case to ground.

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

  • Optimised for P-type laser diodes (case grounded)
  • CW operation up to 350 mA from 3 to 15 V supply voltage
  • Fast soft start after power-on
  • Simple power adjustment via an external resistor
  • Control loop accuracy better than 2% with changes in temperature, supply voltage and load current
  • Integrated reverse polarity protection for the iC and laser diode
  • Strong suppression of transients with small external capacitors; integrated flyback path
  • Permanent shutdown with excessive chip temperature and overcurrent (i.e. if the laser diode is damaged or the feedback current path fails)
  • Second feedback input MDA also permits the operation of N-type laser diodes
  • Modulation via the feedback inputs possible
  • Wide monitor current range from 2.5 µA to 6.25 mA

Applications

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