LaCoSys SmartPower XS 10-2, Manual

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Sold & supported by CW Laser Diode Driver for
Butterfly 14Pin Package
SmartPower XS 10-2
Made in Germany by 10-11 SmartPower XS 10-2
LaCoSys Sept 2020
Rev. A
6 Getting Started
6.1 Hardware Setup

Mount the driver at an appropriate heat sink. Use a heat conducting foil for interface between
driver and heat sink. We strongly recommend using plastic washers for the screws when you mount
the device on a heat sink with protective earth connection.

Make sure that no cable is connected to the printed circuit. Use an approved personal grounding
bracelet for ESD protection of the laser during the following step.

Mount your Laser Diode and solder all connections carefully.

Provide the supply voltage and control signals via the X2 on board connector & flat cable
6.2 Start Driver and Check Temperature loop

Turn on your power supply and measure with a voltage probe the signal an Pin 1 blue and red wire
(GND) approx. 2.5V=25°C. Other temperatures can regulate by the temp set point potentiometer.
Please monitor the actual temperature while adjusting.

Enable the Laser current by shorting pin5 and pin 4 (orange & red wire) and check the voltage on
the I-Monitor pin. With the setpoint potentiometer you can adjust the laser current. Be careful and
watch always the current monitoring pin while turning the potentiometer.

Your system is now ready for operation
6.3 Analogue Modulation
The driver board can handle signals from CW up to 10kHz. Please make sure that no negative input signals
are provided. The analog input on X2 connector scaled 1V/1A.
6.4
Digital Modulation
The Enable Laser current pin provide the possibility to modulate the laser current between 0 and set point.
The given rise- and fall time specification limits the digital modulation to 3kHz.
7 Temperature Control Loop
The driver board use the built in NTC10k resistor of your Laser diode to measure the internal temperature.
The capability of temperature regulation depends on following points:

Heat sink for the Laser and the Board

Thermal capability of the built in Peltier element

Ambient temperature
Ensure that at your maximum Laser current diode is cooled down to your selected temperature set point.
Therefore, please check the voltage at Temp-Monitor pin in CW-operation after a time.
If you need any assistance according to cooling, heat sink or technical support please contact Tino Becker
electronic.