Wavelength Electronics PLD K-CH Series, Datasheet And Operating Manual

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PLDXK-CH SERIES LASER DIODE DRIVER
QUICK CONNECT GUIDE
!
To ensure safe operation of the PLDxK-CH
driver, it is imperative that you determine
that the unit will be operating within the
internal heat dissipation Safe Operating Area
(SOA).
Visit the Wavelength Electronics website for the most
accurate, up-to-date, and easy to use SOA calculator:
www.teamwavelength.com/support/design-tools/soa-ld-calculator/
Figure 1 shows the top view of the PLDxK-CH driver and
the locations of the configuration switches, Output and
Current Limit adjust trimpots, and pins.
Figure 2 shows a typical wiring diagram for the PLDxK-CH
driver to operate a Type A or B laser. Refer to Table 3 on
page 8 for additional wiring diagrams, or if you are using
the PLD12.5K-CH.
Figure 3 illustrates the three laser types that the PLDxK-CH
can drive. For detailed instructions on using the different
laser types refer to the Operating Instructions .
Figure 1. PLDxK-CH Driver Controls
* DO NOT change switch positions while the output
is enabled; Doing so may damage the laser diode.
!
H1
J1
PDC
PDA
PLD K-CH
LIM I
ADJ - I DISABLED
OUT
ADJ - OUT ENABLED
LASER DIODE DRIVER
CP/CC PD - Lo/Hi
LDC
LDA
+5V
GND
Setpoint Adjust (12-turn)
Operating Mode *
PD Range *
L = 15 – 500 µA
H = 50 – 5000 µA
CP = Constant Power
CC = Constant Current
J1
J3
J2
Limit Adjust (12-turn)
Current Limit LED
Output Enabled LED
H1
PIN 1: COMMON
Photodiode Output (PD OUT - type C lasers only)
Enabled Status (LD STATUS)
Output Enable (LD ENABLE)
Modulation Input (ANALOG IN)
Photodiode Voltage (PDV - type C lasers only)
PIN 1: COMMON
Limit Current Monitor (LMON)
Photodiode Current Monitor (PMON)
Current Monitor (IMON)
J3:4
H1:4
OR
LD Anode
LD Cathode
H1:2
H1:3
LD Enable
Closed = Output Enabled
Open = Output Disabled
H1:1
+5 V
GND
(Internally Shorted)
J3:5
J3:1
or
J2:1
J2:4
J3:3
J2:3
J2:2
Analog Input
P Monitor
(PD Current)
I Monitor
(Output Current)
LIM I Monitor
LIM I Status
Optional External
Setpoint (0 to 5 V)
+
-
5 VDC
PD Anode
J1:1
0.1 µF
Common
(Low Current)
+5V
10 kΩ
Pull Up Resistor
Short J3:5 to J3:1 when
analog input is not used.
PD
LD
PD
LD
* The External Jumper is installed only on the
PLD5K-CH and PLD10K-CH. The External
Jumper is not installed on the PLD12.5K-CH.
DMM
Jumper *
+
-
* A twisted-pair Power and LD Cable
is available separately (WCB308)
Figure 2. Quick Connect Wiring Diagram, Type A & B Laser Diodes
Type A Laser Diode Type B Laser Diode
Type C Laser Diode
Common
Cathode
Laser Diode Anode &
Photodiode Cathode Common
Isolated Photodiode
Short the
Laser Diode Anode
to Photodiode Cathode
Common
Anode
Laser Diode Cathode &
Photodiode Anode Common
Figure 3. Laser Type Diagrams