iC-NZN QFN24-4x4

N-Type Laser Diode Driver

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Article description

Product description

Laser diode pulse driver iC-NZN allows CW operation of laser diodes and spike-free switching with defined current pulses up to 155 MHz. The optical output power of the laser diode is set-up by means of an external resistor (RMD/PMD). For laser current control without a monitor diode, the laser current monitor at pin IMON is utilised.

A current limit can be set by means of an external resistor at pin RSI.

Setting pin NSLP low, the iC enters a low consumption sleep-mode (< 50 µA typ.).


  • Peak value controlled laser diode driver for operation from CW up to 155 MHz
  • Spike-free switching of laser currents of up to 300 mA
  • Setting of laser power (APC) via external resistor
  • Optional current control (ACC)
  • Laser current limitation
  • LVDS/TTL switching input with TTL sync output
  • Low current consumption sleep-mode < 50 µA
  • Safety shutdown with overtemperature
  • Error signal output with overtemperature, undervoltage and overcurrent
  • All current LD types can be used (N/P/M configurations)
  • Blue laser diodes supported
  • Fast soft-start
  • Strong suppression of transients with small external capacitors


  • Pulsed and CW laser diode modules
  • Laser diode pointers
  • Laser levels
  • Bar-code readers
  • Distance measurement
  • Blue laser diodes
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