Delivery time: days
Manufacturer: Opt Lasers
Available quantity: 7 Item Items Last items in stock!
This is a smaller 3 channel (55 x 24mm), lite version of our driver for RGB laser systems with a built-in softstart feature. Due to high current efficiency, the driver is well-suited for high power laser diodes in projector and RGB laser systems. Each channel can be independently controlled via the analog input of 0 - 5V. Analog input allows for the modulation of the current flowing through the diode up to 100kHz. The max current can be set for each channel via a separate potentiometer on the PCB. Functions of each of the controls on the PCB are labeled to make them more intuitive and easier to set.
A proper connector is attached to the driver for your use. This allows higher bandwidth modulation than other connectors.
This driver is sold without heatsink to support the users who would like to use their own heatsink or optic plate as also to significantly reduce the price. It is a fully functioning component ready to be mounted in laser devices.
Labels on the board showing "R" "G" "B" channels are only the suggestion how to connect the diodes. It is possible to use any channel to any diode.
The minimum diode input voltage should be higher or equal to 7V, in other situations it is given by the formula:
Vin = 0,3* I + Vd
Vin - input voltage
Vd - diode working voltage
I - desired maximum current
All channels are powered by one common input.
Each channel can handle 5A current but usually we do not use it this way, if you would like to use more than 6A total (sum from all channels) it is recommended to solder the wires directly to the board, since the connector is rated 3A CW per each pin.
Modulation inputs can be used as TTL inputs with its logic levels of 0V and 5V or as an analog input. Analog modulation means that by using 2,5 V on ANG input you get 50% output power, analogically by using 4 V you get 80% output power, etc.
Depending on used laser diode and PSU, you should monitor and assure proper cooling for MOSFET transistor.
The MOSFET/MOSFETS must be isolated from the heatsink/plate with silicon pad as well as plastic sleeve. Short circuit between MOSFET and heatsink/plate can damage the driver and can be dangerous for the Laser Diode.
We recommend the use of power cables with cross-section of at least 0.5 mm2.
The analog input is protected by a 5V1 Zener diode on occasion there appears the voltage higher than 5V. Despite everything, this input should not be used with higher voltages.
The power supply input is protected against a too high input voltage by a transil diode.
The driver is fitted with a softstart designed to protect laser diodes against switch-on effects.
The output of each channel of the driver is protected by Schottky diode, which reduces the likelihood of a reverse voltage damaging the laser diode.
|Dimensions||55 x 23,5 mm|
|Input Voltage||7 - 16 V|
|Max. Current per Channel||5 A|
|Max. Modulation Frequency||100 kHz|
|Max. Power Dissipation||15W|
|Modulation Input Voltage Range||0 - 5 V|
|Number Of Channels||3|
|Pre-Set Current Setting||2000 mA|
|Softstart Time||2000 ms|
|Transistor Type Used||N-MOSFET|
|Rise Time||less than 1.5µs|
|Fall Time||less than 1.5µs|
|Noise and Ripple (RMS)||12.5 mA|
|Minimum Current (3% Noise)||500 mA|