7
Input for Current Setpoint
The analog setpoint signal is provided via this connector. The output current follows the
input signal proportionally within the driver’s limitations (bandwidth, max. current, rise
time).
Jumper
The analog input can be switched to an inverted digital input.
Set the jumper left to activate the inverted digital input.
Bias and scaling Potentiometers
The bias potentiometer sets a DC output current up to 1.6 A which is added to the input
signal. Turn it right to increase the bias current.
The scaling potentiometer varies with the scaling of the input signal.
Turn it right to increase the scale from 0 A / V to 0.5 A / V.
Test Load
For the first test an appropriate test load may be assembled instead of the laser diode.
This test load can either be a short circuit or a Schottky diode like the ES3C. Please
connect the test load only between anode and cathode (LD+ and LD-) and prevent
shorts to any other part of the circuit.
Power Dissipation
The control of the driver reduces the power dissipation automatically to a minimum.
The driver has to be cooled and allows a maximum power dissipation of 4.5 W.
Mechanical Dimensions
The following dimensions are in millimetres (mm).
width 40 // length 145 // height 25
Summary of Contents for LDP-VRM 025-100 CA
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