Wavelength Electronics WLD33ND Datasheet And Operating Manual

DATASHEET AND OPERATING GUIDE
WLD33ND & WLD33ND-EV
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SMALL FOOTPRINT
The WLD33ND is an easy-to-use analog circuit for space
constrained laser diode applications. The WLD33ND
maintains precision laser diode current (Constant Current
mode) or stable photodiode current (Constant Power mode)
regulation using electronics that are compatible with any
laser diode type. Safely supply up to 3 A of current (model-
dependent) to a laser diode from a single +5 V power supply.
MODEL VARIATIONS
There are five laser diode driver models available in the
WLD family. The standard WLD33ND provides up to 2.2 A to
the laser diode. The WLD33ND-3A provides up to 3 A. The
WLD33ND-2L and WLD33ND-3L are lower noise versions
for Constant Current mode of the 2.2 and 3 A models,
respectively. The WLD33ND-HB is designed to operate with
lower voltage supplies, including lithium-ion batteries.
CONTENTS
QUICK CONNECT GUIDE
PIN DESCRIPTIONS
ELECTRICAL SPECIFICATIONS
SAFETY INFORMATION
OPERATING INSTRUCTIONS — GENERAL
OPERATING INSTRUCTIONS — STANDALONE
OPERATING INSTRUCTIONS — WITH EVALUATION BOARD
ADDITIONAL TECHNICAL INFORMATION
TROUBLESHOOTING
MECHANICAL SPECIFICATIONS
CABLING SPECIFICATIONS
CERTIFICATION AND WARRANTY
Pb
RoHS
406-587-4910
www.teamWavelength.com
Laser Diode Driver & Evaluation Board
B
A
e Laser Type Laser Type
FEATURES AND BENEFITS
• Low cost
• Slow-start laser diode protection
• Drive up to 3 A output current
• Constant Current or Constant Power operation
• Compatible with any laser diode type
• Small package size (1.3" × 1.26" × 0.3")
• Voltage-controlled setpoint
• TTL-compatible shutdown pin
• Adjustable current limit
• Adjustable current range
• 2 MHz Constant Current bandwidth
• Over-temperature shutdown
• 14-pin DIP PCB mount
RAPID PROTOTYPING
Use the WLD33ND-EV Evaluation Board to rapidly
prototype a complete laser diode control system using the
of the WLD33ND laser diode driver. Onboard switches,
connectors, and trimpots make the configuration and
operation simple. Input and output cables are also included
with the WLD33ND-EV.
The WLD33ND is excellent for VCSELs, electro-optical
equipment, and medical/dental systems.
ACCESSORIES
In addition to the WLD33ND-EV Evaluation Board, there
are thermal management kits designed specifically for the
WLD. WEV300 includes a thermal washer and heatsink.
WEV301 adds a +5 V fan, while WEV302 adds a +12 V
fan to the kit. Additionally, there are various power supplies
available that fit any current/voltage needs.
ORDERING INFORMATION
PAGE
2
PART NO
4
WLD33ND
6
WLD33ND-3A
8
WLD33ND-HB
9
10
WLD33ND-2L
16
WLD33ND-3L
22
WLD33ND-EV
25
WTW002
26
WHS302
28
29
WXC303
C
Laser Type
WXC304
© February 2022
DESCRIPTION
2.2 A Laser Diode Driver
3 A Laser Diode Driver
2.2 A Li+ Battery-compatible Driver
2.2 A Lower Noise Driver (CC only)
3 A Lower Noise Driver (CC only)
Evaluation PCB
Thermal Washer for all WLDs
Heatsink for all WLDs
+5 VDC Fan for all WLDs
+12 VDC Fan for all WLDs