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CERTIFICATION AND WARRANTY

CERTIFICATION

Wavelength  Electronics,  Inc.  (Wavelength)  certifies  that  this 

product met its published specifications at the time of shipment. 

Wavelength further certifies that its calibration measurements are 

traceable to the United States National Institute of Standards and 

Technology, to the extent allowed by that organization’s calibration 

facilities,  and  to  the  calibration  facilities  of  other  International 

Standards Organization members.

WARRANTY

This Wavelength product is warranted against defects in materials 

and workmanship for a period of one (1) year from date of shipment. 

During  the  warranty  period,  Wavelength  will,  at  its  option,  either 

repair or replace products which prove to be defective. 

WARRANTY SERVICE

For warranty service or repair, this product must be returned to the 

factory. An RMA is required for products returned to Wavelength 

for warranty service. The Buyer shall prepay shipping charges to 

Wavelength and Wavelength shall pay shipping charges to return 

the product to the Buyer upon determination of defective materials 

or workmanship. However, the Buyer shall pay all shipping charges, 

duties, and taxes for products returned to Wavelength from another 

country.

LIMITATIONS OF WARRANTY

The warranty shall not apply to defects resulting from improper use or 

misuse of the product or operation outside published specifications. 

No other warranty is expressed or implied. Wavelength specifically 

disclaims the implied warranties of merchantability and fitness for 

a particular purpose. 

EXCLUSIVE REMEDIES

The remedies provided herein are the Buyer’s sole and exclusive 

remedies.  Wavelength  shall  not  be  liable  for  any  direct,  indirect, 

special, incidental, or consequential damages, whether based on 

contract, tort, or any other legal theory.

REVERSE ENGINEERING PROHIBITED

Buyer, End-User, or Third-Party Reseller are expressly prohibited 

from  reverse  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  for  incidental  or  consequential  damages  in  connection 

with the furnishing, performance, or use of this material. No part of 

this document may be translated to another language without the 

prior written consent of Wavelength.

SAFETY

There are no user-serviceable parts inside this product. Return the 

product to Wavelength Electronics for service and repair to ensure 

that safety features are maintained.

LIFE SUPPORT POLICY

This  important  safety  information  applies  to  all  Wavelength 

electrical and electronic products and accessories:

As  a  general  policy,  Wavelength  Electronics,  Inc.  does  not 

recommend the use of any of its products in life support applications 

where  the  failure  or  malfunction  of  the  Wavelength  product  can 

be reasonably expected to cause failure of the life support device 

or  to  significantly  affect  its  safety  or  effectiveness.  Wavelength 

will  not  knowingly  sell  its  products  for  use  in  such  applications 

unless  it  receives  written  assurances  satisfactory  to  Wavelength 

that  the  risks  of  injury  or  damage  have  been  minimized,  the 

customer assumes all such risks, and there is no product liability 

for Wavelength. Examples of devices considered to be life support 

devices  are  neonatal  oxygen  analyzers,  nerve  stimulators  (for 

any  use),  auto-transfusion  devices,  blood  pumps,  defibrillators, 

arrhythmia  detectors  and  alarms,  pacemakers,  hemodialysis 

systems, peritoneal dialysis systems, ventilators of all types, and 

infusion  pumps  as  well  as  other  devices  designated  as  “critical” 

by the FDA. The above are representative examples only and are 

not intended to be conclusive or exclusive of any other life support 

device.

REVISION HISTORY

DOCUMENT NUMBER: FL500-00400

REV.

DATE

CHANGE

F

Feb.  2009

Updated to include FL500 

Reflow Oven compatibility

G

Sept. 2009

Updated to reflect RoHS Status

H

June 2013

Updated Noise & Ripple 

specifications

I

Mar. 2014

Clarified reflow compatibility

J

Dec. 2014

Updated to fully reflow 

compatible

K

Nov. 2015

Updated leakage current 

specification

L

Oct. 2020

Updated to new format, added 

current limit and PD feedback

WAVELE

n

GTH

 

E L E C T R O N I C S

51 Evergreen Drive

Bozeman, Montana 59715

406-587-4910  (tel)

406-587-4911  (fax)

Sales & Tech Support

[email protected]

[email protected]

© 2020

www.teamWavelength.com

14

FL500 LASER DIODE DRIVER

Summary of Contents for FL500

Page 1: ...patible Shutdown Pin Adjustable Current Limit on Evaluation Board Adjustable Current Range Output 500 kHz sinewave Constant Current Bandwidth 100 kHz square wave CONTENTS QUICK CONNECT GUIDE 2 PIN DES...

Page 2: ...A calculator https www teamwavelength com support design tools soa ld calculator Figure 1 FL500 Top View Pin Layout Figure 2 Dual 250 mA drivers configuration Figure 1 shows the top view Pin layout of...

Page 3: ...node Laser Diode Cathode Photodiode Anode Common Figure 4 Laser Type Diagrams LASER DRIVER TEST LOADS Figure 5 shows a recommended simulated laser load for Type A and Type B lasers in Constant Current...

Page 4: ...VSET1 VSET2 VSET2 6 Setpoint for LDC2 control 2 k input impedance 0 to 2 V range There is no internal clamping so higher voltage here will produce more current through the laser diode Not recommended...

Page 5: ...IOUT 500 mA 300 nsec Fall Time IOUT 500 mA 300 nsec Bandwidth Constant Current Sine Wave 500 kHz Bandwidth Constant Current Square Wave 100 kHz Delayed Start 100 msec Slow Start ramp rate 15 mA msec D...

Page 6: ...de Rejection Setpoint Full Temperature Range 16 64 dB Power Supply Rejection Full Temperature Range 60 dB THERMAL Heatspreader Temperature Rise TAMBIENT 25 C 43 C W Pin Solderability Solder temp 260 C...

Page 7: ...roper handling of sensitive electronics and is easily preventable with simple precautions For more information regarding ESD see Application Note AN LDTC06 Basics Electrostatic Discharge ESD We recomm...

Page 8: ...m VS is determined by the voltage drop across the laser diode and half the setpoint voltage VSMIN VLD VSET 2 25 mV across FET Ground this power supply at Pins 9 10 PGND Using Pin 2 could damage the FL...

Page 9: ...8 11 12 on each FL500 together and wire the test load to these pins and Pin 1 VDD Tie PGND Pins 9 10 together and use to ground VS Ground Pin 2 as well Tie each Pin 3 RESET together and ground to enab...

Page 10: ...driver use the same circuit to also connect to VSET2 CONSTANT POWER MODE To operate in Constant Power mode with photodiode feedback use the circuit below from the FL591 schematic PDA1 PDR1 R10 1 0K 1...

Page 11: ...the driver will be operating within the SOA Refer to the laser datasheet to find the maximum voltage VLOAD and current ILOAD specifications Calculate the voltage drop across the driver VDROP VS VLOAD...

Page 12: ...r driver is compliance limited Check the laser diode specifications to determine the forward voltage VF Make sure that the FL500 is not compliance limited Refer to the Electrical Specifications table...

Page 13: ...are 5 0 75 19 1 mm 0 047 1 19 mm 0 125 3 2 mm 0 45 11 4 mm 0 48 12 2 mm 0 040 1 02 mm 0 55 13 8 mm 0 26 6 5 mm 0 035 0 89 mm 0 45 11 4 mm 0 100 2 5 mm 0 085 2 2 mm 0 100 2 5 mm 0 018 0 46 mm 0 75 19...

Page 14: ...r incidental or consequential damages in connection with the furnishing performance or use of this material No part of this document may be translated to another language without the prior written con...

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