PICOLAS LDP-AV 16N45-40 User Manual Download | Manualshive

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How to use the Manual

Notice:

Depending on the final application and operation regime, this unit must be

assembled onto a heat sink or may stay non-cooled. Improper cooling may cause
damage to the electronic components.

Before powering on your driver unit read this manual thoroughly and make sure you
have understood everything.

Caution: High voltages up to 60 V are present at several PCB components. Do not
touch during operation.

Please pay attention to all safety warnings.

If you have any doubts or suggestions, please do not hesitate to contact us!

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Summary of Contents for LDP-AV 16N45-40

Page 1: ...User Manual LDP AV 16N45 40 PicoLAS GmbH Burgstr 2 52146 Würselen Germany Phone 49 0 2405 64594 60 Fax 49 0 2405 64594 61 E mail info picolas de Web www picolas de Rev 1911 ...

Page 2: ...nnection of the Laser Diode 7 How to connect the Driver 8 Pulse Input 10 Channel Selection 10 Power Supply Requirements 12 Trigger Output Monitor 13 Current Consumption 13 Cooling 13 Power Losses 13 Recommended Operating Conditions 14 Absolute maximum Ratings destroying limits 14 Mechanical Dimensions 15 ...

Page 3: ...3 LDP AV D06 N20 ...

Page 4: ...may cause damage to the electronic components Before powering on your driver unit read this manual thoroughly and make sure you have understood everything Caution High voltages up to 60 V are present at several PCB components Do not touch during operation Please pay attention to all safety warnings If you have any doubts or suggestions please do not hesitate to contact us ...

Page 5: ...e is no built in protection circuit Do use power up sequencing Allow the 5 V supply voltage to fully ramp up before applying any other voltages HV Trigger Input Do not use mechanical force on the PCB components as they are fragile Resulting damages are not covered by warranty Beware Some lab power supplies cause excessive ringing during powering on and off These may damage the unit Do keep connect...

Page 6: ...urther details 5 Connect the pulse generator to the SMA trigger input jack Ensure that no pulse is fed before powering up the unit 6 Carry out the power up sequence as follows 1 Fully ramp up the 5 V rail 2 Enable the HV supply Then feed a pulse signal to the input terminal For example 3 3 V LVDS signal 100 µs pulse width and 1 kHz repetition rate Security advice Do not touch the PCB components ne...

Page 7: ...not only includes the diode itself but also the packaging bond wires and the connection between the driver and the diode However PicoLAS has no influence on these parts Refer to the PicoLAS Application Notes Impedance of Diodes and LD Connections for more information on parasitic elements and their effect on the pulse shape If you need different pad sizes for your laser diode please do not hesitat...

Page 8: ...8 How to connect the Driver Figure 3 Layout of the LDP AV 16N45 40 with a marking of the connector 1 Connector 1 ...

Page 9: ... BIT1 9 CHSEL2 Binary channel selection BIT2 10 CHSEL3 Binary channel selection BIT3 11 nc nc 12 INH Leave this pin floatend to disable this driver operation Connect to logic level low to turn all channels on This driver has an internal 10 kOhm pull resistor to 3 3 V 13 GND Ground return 14 nc nc 15 nc nc 16 GND Ground return 17 5 V 5 V supply voltage connect to a stabilized power supply 18 GND Gr...

Page 10: ...s 100 µs The LDP AV 16N45 40 has an internal short pulse sharpener included This feature assures a constant pulse width Channel Selection This driver includes an internal multiplexer which allows to select a specific channel thus a laser diode For the selection of one specific laser diode see following table CHSEL3 CHSEL2 CHSEL1 CHSEL0 Channel laser diode 0 0 0 0 0 0 0 0 1 1 0 0 1 0 2 0 0 1 1 3 0 ...

Page 11: ...This driver is capable for individual coding methods Therefore the LDP AV 16N45 40 features the ability of fast channel selection up to 1 MHz If you need a flash driver instead of a sequential driver please do not hesitate to contact us Customized driver topologies are possible LD 0 1 9 10 11 12 13 2 3 4 5 6 14 15 7 8 0 15 ...

Page 12: ...n be taken care of by using an additional capacitor bank and hard power switching at its output Failure to meet this requirement may cause the gate driver circuitry to stay in a faulty state To reveal that you have to feed the power supply 5 V or HV in there are two blue LEDs included They indicate that the power supply is turned on Figure 6 On the left handed side the 5 V and on the right handed ...

Page 13: ...0 V 55 V 5 400 mA Trigger signal present Supply input Conditions Typ Max Unit EN EP 0 3 5 mA EN Differential input low threshold 30 100 mV EP Differential input high threshold 30 0 mV Cooling The driver is base plate cooled only Please assemble the entire unit to a heat sink which is capable to take out the heat The heat sink is suitable if the system temperature does not exceed the maximum operat...

Page 14: ... Typ Max Unit CHSEL0 CHSEL1 CHSEL2 CHSEL3 input logic high 2 4 3 15 V CHSEL0 CHSEL1 CHSEL2 CHSEL3 input logic low 2 1 1 35 V Address transition time 1 0 MHz Absolute maximum Ratings destroying limits Supply voltages Min Max Unit HV 0 55 V 5 V 0 5 2 V Trigger input Min Max Unit Trigger signal voltage unterminated 0 3 3 V Trigger Signal Note that the maximum ratings for both pulse width and repetiti...

Page 15: ...15 Mechanical Dimensions All dimensions are in millimetres mm Figure 7 Mechanical dimension of LDP AV 16N45 40 ...

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