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www.teamWavelength.com

© 2001-2013

WLD3343

PAGE 18

WLD3343-00400-O

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 
for service and repair to ensure that safety fea-
tures are maintained.

LIFE SUPPORT POLICY:

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 signi

fi

 cantly 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, de

fi

 brillators, 

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.

CERTIFICATION AND WARRANTY

CERTIFICATION:

Wavelength Electronics (Wavelength) certi

fi

 es  that 

this product met it’s published speci

fi

 cations at the 

time of shipment. Wavelength further certi

fi

 es 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 
90 days 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 speci

fi

 cations.

No other warranty is expressed or implied. Wavelength 
speci

fi

 

cally disclaims the implied warranties of 

merchantability and 

fi

 tness 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.

WAVELENGTH ELECTRONICS, INC.

51 Evergreen Drive 
Bozeman, Montana, 59715
phone:  (406) 587-4910  

Sales/Tech Support

fax: (406) 

587-4911

e-mail: 

[email protected]

web: 

www.teamwavelength.com

 

REVISION HISTORY

REVISION

REV. I

REV. J

REV. K

REV. L

REV. M

REV. N

REV. O

DATE

31-Aug-09

21-May-10

8-Oct-10

3-Jun-11

16-Dec-11

10-Feb-12

25-Jan-13

NOTES

Updated mechanical 
speci

fi

 cation and links

WLD Rev. E released 
-- lower noise, no leakage 
current, several models

Added VSET input limits

Updated mechanical 
speci

fi

 cations

Updated mechanical 
speci

fi

 cations

Updated V

SET

 

speci

fi

 cations and pin 

description

Added socket 
recommendation

Содержание WLD3343

Страница 1: ...idth Over Temperature Shutdown 14 Pin DIP PCB Mount Figure 1 Top View Pin Layout and Descriptions WLD3343 1 2 3 4 5 6 7 14 13 12 11 10 9 8 TOP VIEW SHD VSET IMON PMON MODE LIM GND VDD PD PD OUTA RS OU...

Страница 2: ...OR OR Bandgap Voltage Reference See Eq 7 Constant Current See Eq 5 VSET Adjusting Limit Current See Table 2 and Eq 3 Adjusting Laser Diode Current Range See Table 1 or Eq 1 1 1 RPD IPD VPD VPD RPD 2k...

Страница 3: ...5 V ILD 1 0 Amp 5 V ILD 2 0 Amps 5 V ILD 3 0 Amps 5 V ILD 100 mA 12 V ILD 1 0 Amp 12 V ILD 2 0 Amp 12 V ILD 3 0 Amp 12 V ILD Full Scale ILD Full Scale Constant Current Sine Wave Constant Power TAMBIEN...

Страница 4: ...SUPPLY Voltage VDD Current VDD supply quiescent MONITOR ACCURACY Monitor Voltage versus Expected Output Current based on transfer function PD Monitor versus Actual Setpoint versus Actual Pin 2 TAMBIE...

Страница 5: ...43 to regulate the laser diode s forward current CONSTANT POWER OPERATION A 0 1 F capacitor between Pin 5 MODE and Pin 6 LIM configures the WLD3343 to regulate the laser diode s output power A resisto...

Страница 6: ...o Pin 7 GND CP Connect Pin 13 PD to Pin 7 GND TYPE C LASER DIODE OPERATION CC Connect Pin 12 PD and Pin 13 PD to Pin 7 GND CP Connect Pin 13 PD to the cathode of the photodiode Power supply input for...

Страница 7: ...Vs VLoad and mark on the X axis Example 12 volts 5 volts 7 volts Point A 2 Determine the maximum current ILoad through the driver and mark on the Y axis 1 amp Point B 3 Draw a horizontal line through...

Страница 8: ...e driver Vs VLoad and mark on the X axis Example 9 volts 6 volts 3 volts Point A 2 Determine the maximum current ILoad through the driver and mark on the Y axis 2 5 amps Point B 3 Draw a horizontal li...

Страница 9: ...NSE Note Wavelength Electronics recommends a conservative power rating of 2 times normal maximum for RSENSE Equation 2 incorporates this recommendation Table 1 Laser Diode Current Sense Resistor RSENS...

Страница 10: ...ode type and mode of operation divide the maximum laser diode current determined in Section 1 into the desired maximum operating current for the laser diode This result is the Normalized Maximum Outpu...

Страница 11: ...2 0 36 36 0 40 40 0 44 44 0 48 48 0 52 52 0 56 56 0 60 60 0 64 64 0 68 68 0 72 72 0 76 76 0 80 80 0 84 84 0 88 88 0 92 92 0 96 96 1 00 100 152 162 172 183 194 205 217 230 243 257 272 288 305 322 341 3...

Страница 12: ...diode resistor connections Figure 5 Connecting RPD Equation 4 Calculating RPD Table 3 Monitor Photodiode Sense Resistor RPD vs Maximum Photodiode Current IPDMAX 20 A 50 k 200 A 5 k 2 mA 500 20 mA 50 M...

Страница 13: ...UTDOWN SWITCH SHD 14 1 VDD WLD3343 SHD TTL INPUT ENABLE DISABLE OR 6 DISABLING OUTPUT CURRENT The output current can be enabled and disabled as shown in Figure 6 using a SPST Single Pole Single Throw...

Страница 14: ...00 mA 438 m 5 01 RSENSE Rev A B 500 m 5 1 1 2 3 4 5 6 7 14 13 12 11 10 9 8 WLD3343 LASER DIODE DRIVER VDD RLIM 1 TIE GROUND CONNECTIONS DIRECTLY TO PIN 7 RSENSE ENABLE DISABLE IMON NC 1 k 1 1 1 LD PD...

Страница 15: ...A 438 m 5 01 RSENSE Rev A B 500 m 5 1 1 2 3 4 5 6 7 14 13 12 11 10 9 8 WLD3343 LASER DIODE DRIVER VDD RLIM 1 TIE GROUND CONNECTIONS DIRECTLY TO PIN 7 RSENSE ENABLE DISABLE IMON NC 1 k 1 1 1 LD PD LD P...

Страница 16: ...Pin 3 IMON to the amount of forward current flowing through the laser diode 13 MEASURING MONITOR PHOTODIODE CURRENT IN CONSTANT CURRENT MODE Equation 8 provides a transfer function for converting the...

Страница 17: ...hru 0 25 6 4 DIA KEEPOUT 4 Required 0 038 0 97 Dia Thru Hole 0 060 1 52 Dia Pad 14 Required 0 023 0 58 0 023 0 58 0 900 22 86 0 945 24 00 SQ 0 175 4 45 0 100 2 54 PCB FOOTPRINT Screw 4 40 PHPH x 75 w...

Страница 18: ...tent 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...

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