Wavelength Electronics QCL OEM Series, Datasheet And Operating Manual

Page 1: ...deployed This driver is well suited to applications requiring fast measurement times and ultra high sensitivity REVERSE POLARITY AVAILABLE Often with epi down configurations of a QCL the exit lead is...

Page 2: ...5 A operation RLOAD 10 50 W metal film resistor Wavelength part number QCL TEST LOAD available for 1 A and 1 5 A current ranges Caddock MP850 10 1 Ohmite TCH35P10R0JE Recommended test load for 1 5 A t...

Page 3: ...utput Enable Status Blue Output Enabled HI Can be used to drive an indicator LED sourcing up to 25 mA at 12 V 10 Remote Enable Red Remote Output Enable signal DISABLE LO 3 V ENABLE HI 5 to 12 V Toggle...

Page 4: ...gh current return Right SMA Center Pin QCL Current from the QCL sinks to this pin Refer to Figure 2 Right SMA Shield QCL Ground Ground connection QCL current sources from this pin Refer to Figure 2 Ta...

Page 5: ...P 16 V with 24 VDC power supplies Short Term Stability 1 hr 5 10 15 ppm 25 C Long Term Stability 24 hr 5 10 15 ppm 25 C Temperature Coefficient 5 10 18 ppm C Delayed Start 1 25 sec Slow Start Ramp 100...

Page 6: ...tor to Actual Current 1 5 mA Limit Monitor Range LIM_MON 0 4 5 75 V Accuracy Limit Monitor to Actual Limit 0 1 Status Outputs Overtemp Power Enable Active HI 12 V output source up to 25 mA 5V AUX POWE...

Page 7: ...ls It may be useful to remember that you do not directly set the drive current setpoint Instead you adjust a voltage signal that represents the output current the voltage is set either with the onboar...

Page 8: ...igh current applications or when operating temperatures are elevated forced airflow over the heatsink may be required Refer to the online SOA calculator to determine whether or not a fan will be neces...

Page 9: ...ound this resistor is necessary if the electronics ground is tied to earth ground at some point within your system such as at a DAQ card computer or USB cable connection This resistor provides a lossy...

Page 10: ...and referencing Table 3 on page 4 for the transfer function VOUT_MON IOUT Transfer Function V Connect the voltmeter to the Current Output Monitor pins J1 5 positive and J1 3 negative gnd Switch on th...

Page 11: ...ngs SWITCH NO ON LEFT OFF RIGHT ON OFF PWR PWR EN EN LOCAL REMOTE 4 3 2 1 4 Remote Signal Tied to Driver Ground Remote Signal Optically Isolated 3 Local Power Switch Remote Power Signal 2 Remote Signa...

Page 12: ...he output and latch the driver in a FAULT state If a fault is indicated switch off the QCL driver and power supplies After correcting the cause of the power supply error the driver must be reset Toggl...

Page 13: ...ding may be inadequate Refer to Wavelength Electronics Application Note AN LD08 Manage Grounding to Minimize Noise with the QCL Drivers https www teamwavelength com download applicationtechnotes an ld...

Page 14: ...A C Wiring Diagram QCL OEM REV A C TRANSFER FUNCTIONS The transfer functions for production revisions A C are shown in Table 5 and Table 6 Table 5 Current Limit Monitor and Setpoint Transfer Functions...

Page 15: ...he Limit Offset Current and the Absolute Current Limit the output response to the analog input setpoint is nonlinear The result is that the drive current will asymptotically approach the absolute curr...

Page 16: ...term high volume manufacturing Examples of Product Variations include Increase the compliance voltage limit with PV055 C compliance voltage can be increased to 20 V and requires power supply inputs o...

Page 17: ...s ungrounded and using a low quality linear power supply introduces a very strong 60 Hz noise signature on the output In most applications this strong 60 Hz signature will negatively impact QCL perfor...

Page 18: ...tage Extend a diagonal line from V to the intersection of the other two lines this is the Load Line If the Load Line crosses the Safe Operating Area line at any point the configuration is not safe If...

Page 19: ...ugs 6 blue lugs for 14 AWG wire 3 red lugs for 24 AWG wire If using the PWRPAK 24 power supplies available from Wavelength connect the cables as shown in Figure 4 on page 9 If different power supplies...

Page 20: ...END BLK WHT RED 1 Overall Cable Length 18 3 pin MOLEX SDA 43645 0300 2 3 PGND V V WCB314 4 PIN QCL LOAD CABLE ONE INCLUDED WITH QCL OEM DRIVER STRIP 5 00 OF PVC JACKET TYPE THIS END RED BLK GRN WHT P...

Page 21: ...SUPPLY BY MORE THAN 6m m SEE NOTE C NOTES NAME PLATE 7 3 10 1 VOLTAGE ADJUSTMENT 5 M3 5 SEE NOTE B LED 82 1 8 15 MORE THAN 6m m SCREWS MUST NOT PROTRUDE INTO POWER SUPPLY BY C M3 TAPPED HOLES 2 FOR CU...

Page 22: ...15 011 59 140 818 5 54 58 712 2 31 166 370 6 55 18 250 72 14 996 59 35 738 1 41 55 378 2 18 Figure 21 QCL OEM Driver Mechanical Dimensions The QCL OEM Driver must be firmly secured by the baseplate m...

Page 23: ...ce 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 m...