Theย WLD33ND-2Lย is a general purpose laser diode driver that maintains precision laser diode current (Constant Current mode) using electronics that are compatible with any laser diode type. It is designed for lower noise operation compared to the standardย WLD33ND. It delays and slowly ramps the current for maximum protection. Supply up to 2.2 A of current to your laser diode from a single +5 V power source.ย An evaluation board is available to simplify prototyping:ย WLD33ND-2AEV.
An internal thermostat shuts down the WLD safely if the device temperature exceeds 105ยฐC. Remotely enable or disable current. Zero leakage current allows operation with VCSELs. Current range is scaled by an external resistor.
To operate from 3.6ย V (for Lithium-Ion batteries) try theย WLD33ND-HB. For 2.2 or 3ย A operation in Constant Current or Constant Power mode, theย WLD33NDย orย WLD33ND-3Aย are available. To drive with lower noise up to 3 a in Constant Current Mode only, theย WLD33ND-3L is available. A circuit calculator tool speeds selection of external component values (see Design Tools tab). Heatsinking solutions to use theย WLD33ND-2Lย at full current are available.
This laser diode driver is ideal for applications where space is tight. It is widely used inย electro-optic qualification,ย Raman spectroscopy, medical diagnostic equipment, range finders, eye-safe atmospheric lidar and on research benches.
Free, effective, and responsive technical support is available to simplify integration of Wavelength products into your OEM design. Standard product can be easily modified to meet your application requirements.
