PLD Series Laser Diode Drivers
General Description
Features
The PLD series of Laser Diode Drivers combines the high
performance you expect from a Wavelength component with two
distinct improvements: low voltage operation from +5 V DC, and
an Active Current Limit.
Operating from a single +5 V supply minimizes heat
dissipation. Modular packaging makes it easy to integrate the PLD
into your system. For applications that require a higher forward
voltage, a separate laser diode power supply input lets you provide
a higher compliance voltage. The Active Current Limit not only
protects your laser diode, but ensures that you are operating with
maximum stability. When the laser current reaches the level set by
the Limit I Trimpot, the output disables and the Limit LED and Limit
Status indicate the current limit has been reached.
Two photodiode ranges provide variable sensitivities for
optimum operation. You can maintain excellent stability when
operating in both constant current and constant power mode. All
trimpots and switches are easily accessible and offer precision
control. A slow start circuit, mechanical shorting relay, and Active
Current Limit offer maximum protection for your laser diode even
when power is removed.
• 200 mA, 500 mA,1.25 A, 5 A and 10 Amp models
• Single supply operation: +5 VDC
• Separate Laser Diode Supply input allows for flexible
compliance voltages up to +28 VDC typical (Consult the
online Safe Operating Area (SOA) calculator for supply
voltages exceeding +5 VDC:
http://www.teamwavelength.com/tools/tools.asp)
• Manually adjust:
Setpoint & Current Limit
Constant Current or Constant Power Operation
Photodiode Sensitivity
• Remotely:
Adjust Setpoint Current with Analog Input
Enable or Disable Output
Monitor Laser Diode Current, Photodiode Current, and
Laser Diode Limit Current
Monitor Limit Status
• Supports all laser diode / photodiode pin configurations
• Safety is maximized:
Slow start circuitry
Mechanical relay protects even when power is removed
Active Current Limit
• Integral Heatsink (Fan Assembly included with PLD-5000
and PLD-10000)
10 A Laser Diode Driver
Evaluation PCB for PLD-10000
Pin Descriptions for PLD-10000*
PIN 1
Pin Descriptions* - All Models Except
PLD10000
N/C
PD CATHODE
PD ANODE
LD CATHODE
LD ANODE/
+LD SUPPLY
GND
[
[
[
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
AUX V+
PD AUX
LD ENABLE
LIM I STAT
LIM I MON
COMMON
I MONITOR
P MONITOR
ANALOG IN
[
+5V
PLD10000
Laser Diode Driver
PLD-10000
PLD10EV
*Note that the pin layout for
the PLD-10000 is different
from all other models.
LIM I
200 mA Laser Diode Driver
500 mA Laser Diode Driver
1.25 A Laser Diode Driver
5 A Laser Diode Driver
Evaluation PCB for PLD 200,
500, 1250 and 5000
LIM I
PLD-200
PLD-500
PLD-1250
PLD-5000
PLDEVAL
OUT
Ordering Information
OUT
1
ON
2
MODE
P
I
L
H
PD RNG
Call 1-406-587-4910 for technical support.
© 2006, 2007
PLD5000-00400-A Rev. D
www.teamwavelength.com
PLD-200 / PLD-500/ PLD-1250 / PLD-5000 / PLD-10000
May 30, 2007
