USBKIT datasheet(7/20 Pages) WAVELENGTH

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PLD10000/PLD12500 LASER DIODE DRIVER

OPERATING INSTRUCTIONS

If you are using the driver on the benchtop or for prototyping

your laser control system, we recommend using the

PLD10EV board.

The driver is first configured for local control in order to

set the drive current limit. Then the driver is reconfigured

according to the actual application.

We recommend using a test load until you are familiar with

operation of the driver. Refer to

page 3 for test load

schematics.

NECESSARY EQUIPMENT

The following equipment is the minimum necessary to

configure the PLD for basic operation:

• PLD controller

• PLD10EV evaluation board (recommended)

• Digital multimeter, 4-½ digit resolution recommended

• Test load for configuring the driver; laser diode, mount,

and laser temperature controller

• Connecting wires

• Power Supplies (see below)

POWER SUPPLY REQUIREMENTS

Linear-regulated or low-noise switching power supplies can

be used. We recommend using power supplies with noise

specifications suitable for your application.

For single-supply operation (PLD10000 only):

• 5 VDC power supply rated for 1.1-times the maximum

laser diode current, plus 250 mA for the electronics

For the PLD12500, or to drive a high-compliance laser with

the PLD10000:

• 5 VDC power supply rated for > 250 mA

• Power supply rated for 1.1-times the maximum laser

diode drive current and > 2.5 V greater than the

compliance voltage of the laser

NOTE: For dual supply operation, it is critical to shut

down the power supply to the laser first before shutting

down the +5V supply powering the electronics. Failure

to follow this order may damage the PLD or laser.

SAFE OPERATING AREA AND

THERMAL DESIGN CONSIDERATIONS

SOAcharts are included in this datasheet for quick reference,

but we recommend you use the online tools instead:

https://www.teamwavelength.com/support/design-tools/soa-ld-calculator/

iT is imperaTive ThaT you verify The uniT wiLL operaTe

wiThin The inTernaL heaT DissipaTion

safe operaTing

area (soa).

operaTing The Driver ouTsiDe The soa may Damage

or DesTroy The Driver anD

/or Laser.

PREVENT DAMAGE FROM ELECTROSTATIC

DISCHARGE

Before proceeding, it is critical that you take precautions to

prevent electrostatic discharge (ESD) damage to the driver

and your laser. ESD damage can result from improper

handling of sensitive electronics, and is easily preventable

with simple precautions.

Enter the search phrase ESD Precautions for Handling

Electronics in an internet search engine to find information

on ESD-safe handling practices.

We recommend that you always observe ESD precautions

when handling the PLD driver and your laser diode.

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