Wavelength Electronics FL591FL Datasheet And Operating Manual Download Page 16

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FL591FL LASER DIODE DRIVER

CABLE SPECIFICATIONS

POWER CABLE -- FL591-00101-A; INCLUDED WITH FL591FL

1
3

Molex 43645-0300 Terminal Housing

Molex 43030-007 3mm Micro-Fit Terminal

1 - DIS

2 - VS

3 - GND

18” Long, 22 AWG

OUTPUT CABLE -- FL591-00102-A; TWO INCLUDED WITH FL591FL

1 - LDA

2 - PDA

3 - LDC

Molex 43645-0300 Terminal Housing

Molex 43030-007 3mm Micro-Fit Terminal

18” Long, 22 AWG

Summary of Contents for FL591FL

Page 1: ...ions The small size and light weight makes the FL500 ideal for airborne applications and the dual channel output is perfect for sighting and detection applications FEATURES AND BENEFITS Accurately and...

Page 2: ...ring types are shown Current Monitor IMON1 Power Monitor PMON1 LD1 Monitor Ground Current Monitor IMON2 Power Monitor PMON2 LD2 Monitor Ground LD1 Output Connector LD2 Output Connector Mode Switches C...

Page 3: ...ode Cathode Photodiode Anode Common Figure 3 Laser Type Diagrams Recommended simulated laser loads are shown in Figure 4 To determine the actual drive current measure the voltage drop across the 1 res...

Page 4: ...OPEN or 3 to 5 V 2 VS Red Power supply positive terminal 3 GND Black Ground connection for power supply input Connectors INPUT 1 INPUT 2 Inner VSET1 VSET2 Positive connection for the external setpoin...

Page 5: ...sfer Functions OPERATING MODE INPUT CONFIG OUTPUT CONFIG VSET TRANSFER FUNCTION NOTES Constant Current One Separate 0 125 A V Measure the voltage on the VSET1 testpoint adjust the VSET1 trimpot to set...

Page 6: ...1 hour 35 to 40 ppm TAMBIENT 25 C Long Term Stability 24 hours 50 to 75 ppm TAMBIENT 25 C CONSTANT POWER CONTROL Short Term Stability 1 hour 0 009 TAMBIENT 25 C Long Term Stability 24 hours 0 02 OUTPU...

Page 7: ...e In CP mode the photodiode PD current is used in the feedback loop and the driver adjusts the output current in order to keep the PD current constant The laser driver includes features that help prot...

Page 8: ...on ESD safe handling practices We recommend that you always observe ESD precautions when handling the FL591FL and laser diodes ONBOARD CONTROLS AND MONITORS Figure 5 shows the jumpers and switches tha...

Page 9: ...L is configured to drive paralleled outputs the current limit is set using the LIM1 trimpot only First calculate the VLIM voltage use the transfer function on page 5 based on your input output configu...

Page 10: ...te the VSET voltage value using the equation below Use the proper CC mode transfer function for dual or single channel operation see Table 2 VSET ILD Transfer Function V Connect the positive lead of t...

Page 11: ...et properly Improper output wiring configuration Check that the connections to the laser diode are made via output connector LD1 Laser output power too low in Constant Current mode Laser current setpo...

Page 12: ...todiode Feedback Resistors GND LIM 1 LIM 2 LDA LDA PDA PDA LDC LDC LD 1 LD 2 S P RPD1 RPD2 FL500 Channel 1 PD Resistor Channel 2 PD Resistor Calculate new resistor values based on the expected maximum...

Page 13: ...1 0 2 3 1 8 4 U7A AD8032 5 6 7 U7B AD8032 C17 10uF C16 10uF C26 10uF C48 10uF D10 LM4040 2 5 5 4 3 Q5A 2 1 6 Q5B MMDT3946 R96 249 2 3 1 W CW CCW R92 2 0K C49 10uF C50 10uF R91 182 VCC 5 6 7 U4B AD803...

Page 14: ...7uF C9 0 47uF C6 4 7uF C10 10uF VS VEE Filter for U1 VS U1 VEE U1 VCC VEE Filter for U3 VCC U3 VEE U3 VCC VEE Filter for U6 VCC U6 VEE U6 VS VEE Filter for U7 VS U7 VEE U7 C21 0 1uF C28 0 1uF C22 0 1u...

Page 15: ...ine calculators take into consideration operating temperature Follow these steps to use the SOA Chart to determine if the FL591FL will be operating safely Refer to the example SOA chart in Figure 8 Ro...

Page 16: ...1 A INCLUDED WITH FL591FL 1 3 2 Molex 43645 0300 Terminal Housing Molex 43030 007 3mm Micro Fit Terminal 1 DIS 2 VS 3 GND 18 Long 22 AWG OUTPUT CABLE FL591 00102 A TWO INCLUDED WITH FL591FL 1 3 2 1 LD...

Page 17: ...TIONS 11 99 47 15 11 60 27 10 1 07 46 984 1 850 5 08 20 57 15 2 25 53 333 2 100 5 08 20 63 50 2 50 18 38 72 75 53 2 97 188 4 PLS The FL500 chip is convection reflow process compatible not vapor phase...

Page 18: ...engineering decompiling or disassembling this product NOTICE The information contained in this document is subject to change without notice Wavelength will not be liable for errors contained herein or...

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