EU-39 v 1.0 6.10.2014 Description EU-39 is a small and inexpensive driver board for continues wave (CW) operation. It is suitable for laser diodes with external PD input. The output current can be easily adjusted by a potentiometer up to 300 mA. The laser diode output power is independent from the supply voltage. Characteristics Parameter Supply Voltage Laser Diode Current, adjustable Dimension (H x W x D) Weight Operating Temperature Storage Temperature Symbol Min. VB ILD Values Typ. 2.3 0 Max. 3.2 300 9 x 16 x 4 0.47 TCASE TSTG 0 -20 50 70 Unit V mA mm g °C °C PIN Configuration EU-39 with external PD support TOP UB LD- GND BOTTOM PIN Function UB GND LD+ LDPD+ PD- Supply Voltage + Ground Laser Diode Anode Laser Diode Cathode Photo Diode Anode Photo Diode Cathode PDLD+ PD+ www.roithner-laser.com 1 Operation Note EU-38-PD with external PD support P1 TOP Potentiometer Function P1* for laser diode current adjustment Turn left = increase the value Turn right = decrease the value * Note: P1 is a trim pot which can be turned clockwise and counterclockwise slowly to the end points. The trim pot can be damaged, if you keep on turning it at the end points ! © All Rights Reserved The above specifications are for reference purpose only and subjected to change without prior notice www.roithner-laser.com 2