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Description:The LuOcean� Mini Driver Board is designed for OEM

manufacturers requiring a digital interface to all functions

of the LuOcean� Mini diode laser series. The standard

RS232 programming interface and build-in protective

features provide the opportunity to simplify development

and manufacturing.

Drawing (Dimensions in mm)

Features & Functions:n Full digital controln Current range up to 25 An Pilot on/off & intensity controln Pulse width down to 0.25 msn Duty cycle range 0.5% to 80%n Switch for turning off laser diode after error/interlockn Shut down in case of overheating

Benefits:n Short circuit protectionn External interlock signaln Digital access to all laser module sensorsn Error register, full laser diode protectionn Cooling by free convection up to 60W output power

Options:n LuOcean Mini connector cable

Applications:n Medical treatmentn Material processing

LuOcean Mini Driver Board

LU_DR_AE25A07V_D_DC_A3 Diode Laser Driver

Up to 25 A c.w. to 2 kHz With Digital Interface

Data Sheet Version 2019-04-17, © All rights reserved by Lumics GmbH, E-mail: info@lumics.com, www.lumics.com

Pin Connections

Pin Term. Sensor/Control Function Terminal

1 T1 Vs = 12 V for Fiber sensor / Monitor diode cathode

2 T1 Fiber sensor 1 signal - In

3 T1 GND **

4 T1 Fiber sensor 2 signal - In

5 T1 Monitor diode signal 1 - In

6 T1 Pilot laser (3/5) V (50 mA) 8 V / 100 mA - Out

7 T1 Monitor diode signal 2 - In

8 T1 GND ** (Pilot)

9 T1 GND ** (NTC)

10 T1 Pilot intensity control (0-5)V, pilot off =5V

11 T1 NTC - In

12 T1 No connection

1 T2 Vs = 12 V (100 mA) external - Out

2 T2 Interlock signal (TTL) external - Out

3 T2 Monitor diode signal 1 external - Out

4 T2 Laser on signal - Out

5 T2 GND **

6 T2 RS232-TX signal - OUT

7 T2 RS232-RX signal - In

8 T2 GND RS232 (serial interface common, floating)

9 T2 External interlock signal - In (24 V)

10 T2 Vs = 24 V (100 µA) external interlock - Out

11 T2 GND **

12 T2 24V DC fan (14 V/26 V, two settings, 0.7 A) - Out

13 T2 GND **

14 T2 24V DC fan (14 V/26 V , two settings, 0.7 A) - Out

15 T2 GND **

16 T2 24V DC fan (14 V/26 V , two settings, 0.7 A) - Out

Jumper Terminal Blocks

JP1 Fiber sensor 1 switch type (short 1,2), voltage type (short 2,3)

JP2 Fiber sensor 2 switch type (short 1,2), voltage type (short 2,3)

JP3 Pilot voltage 3.3V(short 2,3), 5V (short 1,2), 8V (all open)

JP4 Laser diode max output voltage 7.5(11)V set(unset)

JP9 Baud rate 115.2(9.6) kBd set(unset)

* Common cathode for dual wavelength LuOcean� Mini possible

** GND of laser diode, power supply and sensor/control are connected

DC Power Supply Terminal

1 GND **

2 Anode 48 V (+)

Laser Diode Terminal

1 Laser diode GND * / **

2 Laser diode anode (+)

We manufacture diode lasers.

Terminal 1: Two row socket 3M No159112-5012 for Lumics Mini Rev. 4Counterpart for external cable Molex Milli Grid Cable to Board: Part No. 87568-1273

Terminal 2: Single row terminal socket with screw clamps

Jumper Pin No 3,2,1

Lumics GmbH Berlin. This specification is subject to change without notice.

Characteristics (ambient condition)

Parameter Conditions Symbol Min Typ Max Unit

Input voltage on DC supply terminal Vin 46 48 50 V

Input current on DC supply terminal Iin 4.7 A

Output Voltage on laser terminal (Jumper JP4 set) (1) Vout 7.5 V

Output Current on laser terminal (Jumper JP4 set) (1) Iout 3 25 A

Output Voltage on laser terminal (Jumper JP4 unset) (1) Vout 11.5 V

Output Current on laser terminal (Jumper JP4 unset) (1) Iout 3 16 A

Efficiency h 88 %

Output Current Ripple (0 - 1) MHz Irms 0.25 ARise Time full current range trise 1 ms

Rise Time (2) fixed current +/-2A trise 0.1 ms

Current Overshoot Ierr 15 %

Current Accuracy (dc to 5 kHz) Iacc 3 %

Pulse width full current range Pw 1.5 ms

Pulse width (2) fixed current +/-2A Pw 0.25 ms

Pulse Duty Cycle (1) Pdc 0.5 80 %

RS232 Baud rate 9600 and 11500RS232 Data Format 8 Data Bit / no parity / 1 Stop Bit

Fan Voltage Setting (1) Vfan 14 or 26 V

Fan Current Ifan 0.7 A

Interlock Signal (3) Vinterlock 0 24 V

General Parameters

Parameter Symbol Min Typ Max Unit

Storage temperature (1) TS 0 55 °C

Operation temperature (1) Top 0 45 °C

Cooling (2) free air convection up to 60W or 10A

Humidity / non-condensing atmosphere 80 %

Weight 250 g

Compliance (3) ROHS / UL94V-0 / EMC certificate according to EN 55011

Type of Fan 24V DC only

Material of PCB FR4

Connectors

Signal & control interface connector to laser module 12 pin double row flat cable socket 3M 159112 - 5012

Signal & control Interface connector to external devices 16 way terminal block 28 AWG to 20 AWG

Interface connector pair to laser module PCB Tab Male 6.36mmx0.81mm, pitch 5.08mm

Interface connector pair to DC supply PCB Tab Male 6.36mmx0.81mm, pitch 5.08mm

Further Options

Interface cable to LuOcean Mini (Please ask for quotation if needed)

Notes:

(1) Values must be defined via RS232 digital interface. Minimum current must be above laser diode threshold.

Maximum current 25A with 7.5 V and 16A with 11.5V or maximum power of ~185W

(2) Rise time of <=100µs on request by optimized regulation parameters for a given operating current and voltage up to 21A.

Current overshoot could be as high as 15% for <50µs, but will not damage the diode.

Fall time is always shorter than or equal to rise time.

(3) External interlock must be a low current (<1mA) sourcing (mechanical) switch (e.g. door lock).

Notes:

(1) Operating temperature and rel. humidity must be chosen in a way that the dewpoint of humid air is below the temperature of the board to

avoid condensing of water.

(2) Electrical output power above 60W or 10A requires forced air cooling by 50 m3/h or 2 m/s along the plane of the board.

(3) EN60601-1-2 under evaluation.

We manufacture diode lasers.

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