LaCoSys SmartPower XS 10-2 User manual

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Laser Diode Driver for
Butterfly 14Pin Package
SmartPower XS 10-
2
Made in Germany by 2-11 SmartPower XS 10-
2
LaCoSys Sept 2020
Rev. A
MANUAL
SMART-POWER XS
LASER CURRENT SOURCE
WITH TEC-TEMPERATURE CONTROL

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Laser Diode Driver for
Butterfly 14Pin Package
SmartPower XS 10-
2
Made in Germany by 3-11 SmartPower XS 10-
2
LaCoSys Sept 2020
Rev. A
FEATURES
 Laser driver for butterfly-14-Pins
LC96 package
 Integrated PI- control loop for
laser built in Peltier element
 Wide input voltage range
 Very low power dissipation
 Transient protection
 Over temperature protection
for driver
 Analog set point control
 Enable/Disable for laser current
 Slow start laser diode protection
 Single p
ower supply for complete
diode laser current source
 Easy to mount and user friendly
PARAMETERS
LASER
 Current Range: 0...2A
 Voltage Range: 0...5V
 Current Resolution: analog
 Current Accuracy: ±0.5%
 Current Stability: <0.1%
 Current Noise: < 5mA rms
 Rise Time: < 150µs
Fall Time: < 150µs
 Current Limit: 1.1A
 Enable Input: TTL (Low)
 Analog Input: 1V/1A
TE-cooler DRIVER
 Current: max. ±2A
 Voltage: max. ±2.5V
 Sensor Typ: NTC10k
 Accuracy: ±0.5K
COMMON
 Supply: 7…25Vdc 20W
 Size (HxWxD): 20x56x62 mm
 Mass: 0.016kg
DESCRIPTION
The Diode-Laser-Source „SmartPower XS“ laser diode d
river with
Temperature-
Controller is a high precision, safe and cost effective
solution for driving 14pin Butterfly package diode l
asers in CW
mode. You can set Current from 0...2
A, monitor temp set point and
monitor current. The OEM- Board comes with a built-in
temperature protection for the wide range input stage.
The temperature is controlled by a PI-Control-
Loop. The control
loop uses
the NT10k temperature sensor normally built in the laser
devices (external sensor possible).
Every device has passed our Test Lab to ensure high quality and
reliability.

Sold & supported by
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Laser Diode Driver for
Butterfly 14Pin Package
SmartPower XS 10-
2
Made in Germany by 4-11 SmartPower XS 10-
2
LaCoSys Sept 2020
Rev. A
Contents
1 Introduction ........................................................................................................................................................... 4
2 Technical Parameters ........................................................................................................................................... 5
3 Mechanical Drawing ............................................................................................................................................. 6
4 Pin & jumper description ....................................................................................................................................... 7
5 Laser Diode connection ........................................................................................................................................ 9
6 Getting Started .................................................................................................................................................... 10
6.1 Hardware Setup .......................................................................................................................................... 10
6.2 Start Driver and Check Temperature loop .................................................................................................. 10
6.3 Analogue Modulation .................................................................................................................................. 10
6.4 Digital Modulation ....................................................................................................................................... 10
7 Temperature Control Loop .................................................................................................................................. 10
8 Laser diode protection ........................................................................................................................................ 11
9 Over temperature Protection .............................................................................................................................. 11
10 Temperature set point (NTC-10k) diagram ......................................................................................................... 11
11 Contact ........................................................................................................... Fehler! Textmarke nicht definiert.
1 Introduction
Thank you very much for purchasing our SmartPower Board. You have bought a high-quality advanced
product and we are sure that you will enjoy the work with it.
Please read this operation manual carefully before using the device and pay attention to the safety
instructions given here. In order to obtain optimum performance from your Laser Driver module follow
the installation and operating instructions.
Please note that any unauthorized soldering cancels the one year warranty.
OEM-products are not EMC and CE proven!
If you should have any questions or problems, please contact our service staff.

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Laser Diode Driver for
Butterfly 14Pin Package
SmartPower XS 10-
2
Made in Germany by 5-11 SmartPower XS 10-
2
LaCoSys Sept 2020
Rev. A
2 Technical Parameters
Common data
DC Input Voltage 7…25V (wide range power supply)
Ambient Temperature 0..40°C; Humidity < 95% non-condensing
Dimensions in mm Size (HxWxD) 20x56x62 mm
Mass 0.016 kg
Laser module
Laser Diode Current Range 0...2A
Resolution analog Input unlimited
Accuracy ±0.5% of value in cw mode
Laser Current Limit 2.1A
Laser Diode Voltage Range 0...5.0 V
Current Noise <1mA rms in cw mode
Rise time <150µs
Fall time <150µs
TE-cooler module
TE-cooler Current Range ±2A
TE-cooler Voltage Range ±2.5V
Temperature Controller Set point potentiometer 15-25° ± 1°
relative accuracy ±0.5K
Absolute maximum ratings
Operating Temperature 0°C to 40°C non-condensing
Storage Temperature -40°C to 70°C
Power Dissipation 12Watts

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Laser Diode Driver for
Butterfly 14Pin Package
SmartPower XS 10-
2
Made in Germany by 6-11 SmartPower XS 10-
2
LaCoSys Sept 2020
Rev. A
3 Mechanical Drawing
All dimensions are in mm
Current Setpoint
Ccw → decrease
Cw → increase
LED
LASER ON
red
LED 1
LED 2
LED 3
heating cooling Power On
Red green yellow
Temp Setpoint
Mounting holes 3.2mm for M3

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Laser Diode Driver for
Butterfly 14Pin Package
SmartPower XS 10-
2
Made in Germany by 7-11 SmartPower XS 10-
2
LaCoSys Sept 2020
Rev. A
4 Pin & jumper description
The jumper J1 select the signal source for the laser current setpiont.
Jumper
J1
Connector
X2
Pin 1

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Laser Diode Driver for
Butterfly 14Pin Package
SmartPower XS 10-
2
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2
LaCoSys Sept 2020
Rev. A
Connector X2 type Fischer WSL6 (PIN 1 MARKED)
PIN FUNCTION SPECIFICATION AND REMARKS
1 Temp-Monitor Normal operation 2.5V (see diagram chapter 9)
2 External Set point
Laser Current
(option via Jumper)
0...2V 1V/1A (input Impedance = 10kΩ)
[please contact default: disabled]
3 Monitor Laser
Current
Analog Voltage 0...2V 1V/1A (output impedance 1kΩ)
4 Enable Laser
Current
LOW signal (connect to pin 5 to start laser)
5 GND Power supply return path connected to Laser Diode Cathode (-)
6 Power Supply 7..24V max. 2.2A ripple max. +/- 20mV
(use filters to prevent reverse noise generated
from the driver board)
Current Setpiont via on board
potentiometer
Current Setpiont via external
signal source at X2
0..
2
V = 0..
2
A

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Laser Diode Driver for
Butterfly 14Pin Package
SmartPower XS 10-
2
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2
LaCoSys Sept 2020
Rev. A
5 Laser Diode connection
*Automatic Power Control on Request
PIN FUNCTION SPECIFICATION AND REMARKS
1 TEC Maximum ±2A
2 NTC + Thermistor NTC 10k High potential 5V
3 PD Not used*
4 PD Not used*
5 NTC - Thermistor NTC 10k Low potential 2.5V @ 25°C
6-9 nn Not used
10 LDA Laser diode anode
11 LDK Laser diode cathode
12/13 nn Not used
14 TEC Maximum ±2A
PIN 1
PIN 14
PIN 7
PIN 8

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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.

Sold & supported by
CW
Laser Diode Driver for
Butterfly 14Pin Package
SmartPower XS 10-
2
Made in Germany by 11-11 SmartPower XS 10-
2
LaCoSys Sept 2020
Rev. A
8 Laser diode protection
The Driver Board has a fast protection Diode on the Laser Diode Anode (+) and Cathode (-). The Ground
(GND) of the Board is common with the Laser Diode Cathode. Please note that if you use systems with
protective Earth. We recommend using insulating thermal heat foil.
9 Over temperature Protection
The Driver Board has a built-in temperature protection for the DC/DC converter input stage. If the
temperature in stage reaches maximum the driver will turn off the Laser current and Temperature
control loop. After several ms the driver will automatically try to restart. If the fault condition is still
present the process start again. A longer running in this mode could destroy the driver. Please check
additional action needed for over temperature protection.
10 Temperature set point (NTC-10k) diagram
0,00
0,50
1,00
1,50
2,00
2,50
3,00
3,50
10 15 20 25 30 35 40 45 50 55 60
U(NTC)
Temp in