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5 Amp Low Cost PCB-Mount Driver Circuit for Laser Diodes

  • Low Cost Driver for Laser Diodes

$67.00   Ships: 4 Weeks | Model LDC-401

Key Features
  • Small Footprint, Low Cost Driver Circuit
  • High Power Bias Current for Laser Diodes up to 5 Amps
  • Integrated Soft Start Ramp to Set Point

Price and Delivery Quote

You will receive factory-direct price with no mark-ups

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PRICE $67.00
  • Maximum Laser Diode Driver Output: 5 Amps
  • Current Default Setting: 2 Amps
  • Modulation Frequency (kHz): 0 - 100 (Analog Modulation)
  • Modulation Voltage Range (V): 0 - 5 Volts
  • Modulation Type: Analog
  • Reverse Polarity Protection: No
  • ESD Protection: On-PCB Schottky Diode
  • Soft Start Time Period: 50ms
  • Input Voltage: (V) 3.3VDC - 12VDC
  • Over 5V Modulation Input Clamp: YES (5V Zener diode)
  • Transistor type N-MOSFET
  • Noise and Ripple (RMS): < 13 mA
  • Rise and Fall Time: < 1.5µs
  • Dimensions (LxW mm): 35mm x 20mm

Product Overview:

These small circuit boards are affordable drivers for laser diodes requiring up to five amps of bias current. They are for powering lasers with the option to adjust maximum 5,000 mA, and they allow the user to modulate the laser with a bandwidth of up to 100 kHz. The acceptable input modulation signal for these circuits is Analog (not square wave or TTL). These small circuit boards typically ship from stock and are an excellent choice for product development applications involving pumps and other devices requiring a few amps of forward current. They offer protection features such as a slow start current ramp to the set point. Users should take caution to connect the polarity correctly. These low cost drivers are the bias current source for the laser and they do not have any temperature control functions.

Review of Key Features:
These small PCB's have an LED diode which indicates that the is connected and operating. They include a soft start current ramp to protect against possible over driving the laser. Another useful added feature are the labels on the board which clearly indicate the location of the primary functions. The labels make these circuits more intuitive and easier to set up. They offer the user a very small size at 15mm x 30mm. Even with their small size, they are able to safely drive up to 5 amps of high power current to the laser. The 5 amps is enabled in part by the addition of a large surface area of copper which cools the sense resistor.

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