WLD3343

The WLD3343 is a general purpose laser diode driver that maintains precision laser diode current or stable photodiode current using electronics that are compatible with any laser diode type.

Additional information

  • Small Size: 1.30" X 1.28" X 0.313"
  • Slow Start Laser Diode Protection
  • TTL Compatible Shutdown Pin
  • Adjustable Laser Diode Current Limit
  • Over temperature output shutdown
  • 14 pin DIP PCB mount
  • Up to 2.2 A CW laser diode current
  • Constant Current or Constant Power Mode
  • Voltage Controlled Setpoint
  • Bandwidth 2 MHz (CC, sine wave)

With safety in mind, current is delayed and slowly ramped for maximum protection supplying up to 2.2 A of current to your laser diode from a single + 5V power source.

An internal thermostat shuts down the WLD safely if the device temperature exceeds 105°C. Remotely enable or disable current. Zero leakage current allows operation with VCSELs. Current range is scaled by an external resistor.

To operate from 3.6 V (for Lithium-Ion batteries) try the WLD3343HB. For 3 A operation, the WLD3343-3A is available. To drive with lower noise in Constant Current Mode only, the WLD3343-2L and WLD3343-3L drive up to 2 A and 3 A respectively. A circuit calculator tool speeds selection of external component values (see Design Tools tab). An evaluation board is available to simplify prototyping: WLD3393. Heatsinking solutions to use the WLD3343 at full current are available.

This laser diode driver is ideal for applications where space is tight. It is widely used in electro-optic qualification, raman spectroscopy, medical diagnostic equipment, range finders, and on research benches.

Download

WLD SERIES DATSHEET.pdf
+44 (0) 1829 773155

Secure payments with PayPal

PayPal and all major credit cards accepted.

Next day delivery for UK webshop orders received before 2pm, subject to stock availability.

Delivery charge for UK webshop orders - £7.50

Non-UK orders - Delivery is based on weight of order

All prices shown exclude VAT and delivery.