Delivery time: days
Manufacturer: Opt Lasers
Available quantity: 6 Item Items Last items in stock!
This is a low current version of a 3 channel RGB lite LPLDD laser diode driver. The maximum output current is 1A per channel. It was designed for lower power laser diodes in order to assure smooth waveforms, fast rising/falling time and low ripple.
This is a professional three-channel driver for laser diodes (e.g.: RGB laser systems) with a built-in softstart feature. The current of channel can be independently controlled via the analog input of 0 - 5V with a modulation bandwidth of up to 100kHz. Each channel has a potentiometer that can be used to set the maximum current.
Each of the controls are labeled on the PCB to make it more intuitive and easier to set.
Proper connector is attached to the driver for your use.
This driver is provided without a heatsink to allow customers to use their own heatsink. It also reduces the price for those customers who wish to operate it at a low current where a heat sink is not required. 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 laser 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.
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 MOSFETs.
Note that the 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 0.1 mm2.
The analog input is protected by a 5V1 Zener diode on occasion there appears the voltage higher than 5V. While this additional protection is offered, the user is still advised not to exceed 5V on each analog input.
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 transient effects.
The output of each channel of the driver is protected by a shottky diode that prevents a reverse voltage.
|Dimensions||55 x 23,5 mm|
|Input Voltage||7 - 16 V|
|Max. Current per Channel||1 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||500 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)||4.2 mA|