Theย WLD33ND-HBย is a general purpose laser diode driver that maintains precision laser diode current (Constant Current mode) or stable photodiode current (Constant Power mode) using electronics that are compatible with any laser diode type. 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 supply (+3.3 V to +6 V). Theย WLD33ND-Bย is compatible with Lithium-Ion batteries. For higher compliance voltage, theย WLD33ND operates from +5 V to +12 V.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 makes it perfect for VCSELs. Current range is scaled by an external resistor.
For 3 A operation, theย WLD33ND-3Aย is available. To drive with lower noise in Constant Current Mode only, theย WLD33ND-2Lย andย WLD33ND-3L drive up to 2 A and 3 A respectively. A circuit calculator tool speeds selection of external component values (see Design Tools tab). Heatsinking solutions to use theย WLD3343HBย 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.
