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How to use the Manual 

Remark: 

 

Please read all instructions before powering up the device.  

Please see section “Power Dissipation” for more details about thermal power losses 
during operation. 

 

Please pay attention to all safety warnings. 
If you have any doubt or suggestion, please do not hesitate to contact us! 

 
 
 

Absolute maximum Ratings (destroying limits)  

 

All input pins may not exceed the voltage range below zero (GND) and beyond 
VCC, resp. 5 V TTL. 

 

VCC limit: see table in section “Power Supply (#1)”  

 

Peak output current: 5.0 A 

 

Operating temperature range: 0 °C .. +60 °C 

 

Best performance operating temperature range: +10 °C .. +35 °C 

 

Storage temperature range: -20 °C .. +70 °C 

 
 
 

Dos and Don’ts

  

 

Never ground any output connector. 
Never use any grounded probes at the output.  
Do not connect your oscilloscope to the output! 
Driver and the probe will immediately be destroyed!  
 
Keep the connecting cables between power supply and driver as well as between 
driver and laser diode as short as possible. 

 

Be aware of hot surfaces! Do not touch! 

 

 

 
 
 
 
 
 
 
 
 
 
 
 
 
 

Summary of Contents for LDP-VRM 045-12 CA

Page 1: ...User Manual PicoLAS GmbH Burgstr 2 52146 Würselen Germany Phone 49 0 2405 64594 60 Fax 49 0 2405 64594 61 E mail info picolas de Web www picolas de Rev 1911 LDP VRM 045 12 CA ...

Page 2: ... Dos and Don ts 3 How to get started 5 Required Laser Diode Pinout 6 Power Driver Block Diagram 6 Connectors 6 Power Supply 1 and absolute maximum Ratings 6 Input 1 7 Jumper 2 7 Current Monitor 3 7 Potentiometer for Bias and Scaling 7 Test Load 7 Power Dissipation 7 Mechanical Dimensions 7 ...

Page 3: ...e below zero GND and beyond VCC resp 5 V TTL VCC limit see table in section Power Supply 1 Peak output current 5 0 A Operating temperature range 0 C 60 C Best performance operating temperature range 10 C 35 C Storage temperature range 20 C 70 C Dos and Don ts Never ground any output connector Never use any grounded probes at the output Do not connect your oscilloscope to the output Driver and the ...

Page 4: ...4 ...

Page 5: ...enerator to input terminal no pulse before enabling power supply See all section discussing input connector 2 4 Enable the power source 5 Adjust scaling and bias See potentiometer for scaling a bias 6 Feed a signal on the input terminal For example 1 kHz sine wave with 1 V amplitude Make sure not to overload the laser diode or the driver Range of input signal 0 V 5 V 7 Monitor the current output T...

Page 6: ...he driver Power Driver Block Diagram Description of the Connectors Connector Function 1 Power connector Screw terminal 2 Jumper Analog Digital 3 Current monitor Scale 100 mV A 4 LD connector Screw terminal Power Supply 1 and absolute maximum Ratings Pin of conn 3 Allowed range Best performance Destroying limit 1 VCC laser supply 12 V 24 V 3 V above compliance 25 V 2 GND 3 Input terminal 0 V 5 V 0 ...

Page 7: ... to increase the bias current The scaling potentiometer sets the scaling for the input signal Turn it clockwise to increase the scale from 0 A V to 0 5 A V Test Load For the first verification 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...

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