Laser Drivers

The function of a laser driver is to deliver the exact amount of current set, and at whatever voltage is needed, to the laser diode in a circuit. As a result, they protect the laser diode from damage. 


Laser driver applications

Laser drivers are used in a variety of applications, from diagnostic and analytical equipment in the medical field to welding.
 

Why does a diode need a laser current driver?

An often overlooked factor in using laser diodes in circuits is the influence of temperature on the output power and operating current. 


While the threshold current rises as the temperature increases, the optical output power and differential efficiency decrease. The driver circuit therefore needs a safety feature that ensures that a significant temperature increase will not destroy the laser – a laser driver fulfils this need.


Laser drivers provide closed-loop control of the average optical power of a continuous wave (CW) laser diode. The control loop adjusts the laser to maintain a constant current and power. This ensures a regular temperature and so protects the laser from heat damage. 


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Beskrivning Pris Diode Types Driven Laser Type Driven Maximum Laser Diode Current Maximum Output Current Dimensions Package Type Number of Pins Length Maximum Supply Voltage Minimum Supply Voltage Width Power Dissipation Series Supply Voltage Range
RS-artikelnummer 697-3541
Tillv. art.nrEval Laser Driver Kit
VarumärkeGlobal Laser
1 209,06 kr
Each
Enheter
N Type CW 100mA - - - - - 5.5V dc 3.5V dc - - - 3.5 → 5.5 V dc
RS-artikelnummer 877-9114
Tillv. art.nrADN2841ACPZ-48
VarumärkeAnalog Devices
280,04 kr
Each
Enheter
N Type Closed Loop 100mA 80mA 7.1 x 7.1 x 0.95mm - - 7.1mm 5.5V 4.5V 7.1mm - ADN28 4.5 → 5.5 V
RS-artikelnummer 189-8876
Tillv. art.nrMAX3736ETE+
VarumärkeMaxim Integrated
75,94 kr
Each
Enheter
- SFP 22 (Typ.)mA - 3 x 3 x 0.75mm QFN 16 3mm +6V -0.5V 3mm 2W - -0.5 → +6 V
RS-artikelnummer 697-3535
Tillv. art.nrLaser Driver N Type
VarumärkeGlobal Laser
233,68 kr
Each
Enheter
N Type CW 60mA 2.5mA 6.5 x 20mm - - 6.5mm 6V dc 2.4V dc 20mm - - 2.4 → 6 V dc
RS-artikelnummer 191-4278
Tillv. art.nrMAX3738ETG+
VarumärkeMaxim Integrated
18,328 kr
Each (In a Tube of 75)
Enheter
- SFF, SFP - - 4.1 x 4.1 x 0.8mm QFN 24 4.1mm +6V -0.5V 4.1mm 2222mW - -0.5 → +6 V
RS-artikelnummer 191-4721
Tillv. art.nrMAX3738ETG+
VarumärkeMaxim Integrated
21,69 kr
Each (In a Pack of 5)
Enheter
- SFF, SFP - - 4.1 x 4.1 x 0.8mm QFN 24 4.1mm +6V -0.5V 4.1mm 2222mW - -0.5 → +6 V