October 2, 2020

Pair the WLD3343 Laser Diode Driver with either a WTC3243 or WTCP-5A5V Temperature Controller when precision laser diode current and temperature control are required. The WLD3343’s and the WTC3243’s are Li+ battery-compatible. These drivers are widely used in electro-optic qualification, Raman spectroscopy, medical diagnostic equipment, range finders, eye-safe atmospheric lidar and on research benches. System safety is paramount with Wavelength drivers.

WLD3343 Laser Driver Specifications:
  • Up to 3A CW laser diode current
  • Slow Start Protection, Delay/Current Ramp: 240/10 msec.
  • TTL Compatible Shutdown Pin
  • Adjustable Laser Diode Current Limit
  • Over-temperature output shutdown
  • Constant Current or Constant Power Mode
  • Voltage Controlled Setpoint, Supply Range: +5 to +12 V
  • Bandwidth 2 MHz (CC, sine wave)
  • Current Stability at 25°C: 200 ppm
  • Rise/Fall time: 460/320 nsec
WTC3243 Temperature Controller Specs:
  • Ultrastable PI control
  • Drive ±2.2A of TEC or RH current
  • Linear Stability: 0.0009°C
  • Small 14-Pin DIP package: 1.3″ x 1.28″ x 0.313″
  • Heat and cool current limits
  • Supports Thermistors, RTDs, IC sensors
  • Single supply operation: +5 V to +30 V
  • Adjustable sensor bias current
  • Monitor Actual Temperature
WTCP-5A5V Temperature Controller Specs:
  • Drive up to ±5.0 A to Thermoelectric
  • Efficient Pulse-Width Modulation
  • Efficiency: 85-95%
  • Single 5 VDC supply operation
  • Small 22-Pin PCB-mount package: 1.3″ x 1.28″ x 0.31″
  • Short term stability of 0.001°C
  • Compatible with thermistors
  • Adjustable current and voltage limits
  • Maximum Power Dissipation: 22.5W
  • Evaluation board and pre-loaded OEM board available
For more information on the individuals modules, click the links below:

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