LPLDD-1,5A-12V

Single channel 1.5 A, 3.3-12 V laser diode driver. The low current version of the LPLDD-5A-12V dedicated to working with single and multi-mode laser diodes. Proper shunt resistor and customized parts assure low noise even with small current values. Analog input allows modulating the current with the speed of up to 100 kHz square waves.

Reference: 001279

EAN13: 5902693110927

Manufacturer:

Available quantity: 6 Items

    $43.00 tax excl.

    Accessories

    Product Description

    The low current version of LPLDD laser diode driver. Driver’s maximum output current value is 1.5 A. This version was created for lower power laser diodes in order to assure smooth waveforms, fast-rising/falling time and low ripple.

     

    LED diode showing that driver is connected.

    Softstart protect against switch-on effects

    It has labels on the board - more intuitive and easier to set

    Smaller size - only 15 mm x 30 mm

     

    It has a large surface of copper which cools the sense resistor.

     

    The basic driver for powering laser diodes with the option to adjust maximum output current in the range of 0-1.5 A, and to modulate the current flowing through the diode with frequency up to 100 kHz.

     

    Since it is a lite version of the laser diode controller it does not have protection against polarity change. Be sure you connect it accordingly to the labels on the PCB.

     

    By selecting an appropriate PSU the driver in question, it is possible to power literally every laser diode available on the market up to 1.5 W of output power, 445 nm, 520 nm, 638 nm, 650 nm, 808 nm, 980 nm.

    The examples of diodes are 1 W 445 nm, 700 mW 635 nm, 200 mW 808 nm, 1 W 808 nm, 1 W 520 nm, and all low power single mode laser diodes.

     

    Recommendations and requirements

    The supply voltage should be always higher than or equal to 3.3 V. The minimum supply voltage for other situations is given by the formula:

    Vin = 0,6* I + Vd

    Vin is the input voltage

    Vd is the diode working voltage

    I - desired maximum current

     

    Modulation input can be used as TTL input with its logic levels of 0 V and 5 V 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.

     

    We recommend the use of power cables with a cross-section of at least 0.35 mm2.

    Depending on the used laser diode and PSU, you should monitor and assure proper cooling for the MOSFET transistor. The MOSFET/MOSFETS must be isolated from the heat sink/plate with the silicon pad as well as the plastic sleeve. The short circuit between MOSFET and heat sink/plate can damage the driver and can be dangerous for the Laser Diode.

     

     

    Protection

    Modulation input of the driver is protected by a 5V1 Zener diode. Nevertheless, one should not use modulation voltage higher than 5 V. Schottky diode is being used for ESD protection.

     

    The output of the laser controller is protected by Schottky diode which doesn't allow the reverse voltage to appear.

    Technical Data

    Dimensions30 x 15 mm
    Input Voltage3,3 - 12 V
    Max Ouptut Current1,5 A
    Max. Modulation Frequency100 kHz
    Max. Power Dissipation15W
    Modulation Input Voltage Range0 - 5 V
    Modulation TypeAnalog
    Pre-Set Current Setting750 mA
    Softstart Time50 ms
    Transistor Type UsedN-MOSFET
    Rise Timeless than 1.5µs
    Fall Timeless than 1.5µs
    Noise and Ripple (RMS)4.2 mA

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