26.06.2013 eu -38-ttl 1 of 1 eu- 38 - ttl technical data laser diode driver features ? constant laser diode current adjustable with potentiometer ? modulation input ? laser diode output power independent from supply voltage specification ? dimension: 35 x 15 mm2 (+/ - 0.5 mm) ? supp ly voltage: 4.0 - 5.0 vdc ? max laser diode curren t: 1 a ? modulation frequency: dc .. 100 khz, analog and digital voltage input ? modulation input voltage: 0 v = laser off, u b = laser on, any voltage between 0 and u b possible (>2 v = high) p1: trim pot for laser diode current adjustment ? turn left = laser diode current increase ? turn right = laser diode current decrease note: p1 is a trim pot which can be turned clockwise and counterclockwise slowly to the end points. the trim pot can be da maged, if you keep on turining it at the end point ! laser diode anode (+) laser diode cathode ( - ) modulation input u b (supply volt age +) gnd (supply voltage - ) p1 caution for high currents use a heat sink transistor gets hot
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