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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Description Price 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 Series Supply Voltage Range
RS Stock No. 697-3541
Mfr. Part No.Eval Laser Driver Kit
TWD5,379
Each
units
N Type CW 100mA - - - - - 5.5V dc 3.5V dc - - 3.5 → 5.5 V dc
RS Stock No. 799-2874
Mfr. Part No.MAX3736ETE+
BrandMaxim
TWD351
Each
units
- SFP - 150mA 3.1 x 3.1mm - - 3.1mm 6V -0.5V 3.1mm - -0.5 → 6 V
New
RS Stock No. 165-9617
Mfr. Part No.MAX3736ETE+
BrandMaxim
TWD335
Each (In a Tube of 100)
units
- SFP - 150mA 3.1 x 3.1mm - - 3.1mm 6V -0.5V 3.1mm - -0.5 → 6 V
RS Stock No. 158-1975
Mfr. Part No.ADN2830ACPZ32
TWD698
Each (In a Tray of 490)
units
- - - - 5 x 5mm LFCSP EP 32 5mm - - 5mm - -
RS Stock No. 798-4996
Mfr. Part No.MAX3766EEP+
BrandMaxim
TWD243
Each (In a Tube of 50)
units
- - 2mA 60mA 8.74 x 3.99mm - - 8.74mm 5.5V 4.5V 3.99mm - 4.5 → 5.5 V
RS Stock No. 709-0101
Mfr. Part No.ADN2830ACPZ32
TWD668
Each
units
- - - - 5 x 5mm - 32 5mm - - 5mm - -
RS Stock No. 798-7721
Mfr. Part No.MAX3766EEP+
BrandMaxim
TWD280
Each
units
- - 2mA 60mA 8.74 x 3.99mm - - 8.74mm 5.5V 4.5V 3.99mm - 4.5 → 5.5 V
RS Stock No. 877-9114
Mfr. Part No.ADN2841ACPZ-48
TWD913
Each
units
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 Stock No. 651-2622
Mfr. Part No.LMH6526SP
TWD93
Each
units
- - - - 5 x 5mm - 28 5mm - - 5mm - -
New
RS Stock No. 162-5100
Mfr. Part No.LMH6526SP
TWD146
Each (On a Reel of 1000)
units
- - - - 5 x 5mm LLP EP 28 5mm - - 5mm - -
RS Stock No. 666-5644
Mfr. Part No.PLCS-21
BrandPicolas
TWD52,520
Each
units
- - - - 67.7 x 42.3mm - - 67.7mm - - 42.3mm - -
RS Stock No. 666-5638
Mfr. Part No.LDP-V 50-100V3
BrandPicolas
TWD43,040
Each
units
- - - - 75 x 44mm - - 75mm - - 44mm - -
RS Stock No. 697-3535
Mfr. Part No.Laser Driver N Type
TWD856
Each
units
N Type CW 60mA 2.5mA 6.5 x 20mm - - 6.5mm 6V dc 2.4V dc 20mm - 2.4 → 6 V dc
New
RS Stock No. 169-8460
Mfr. Part No.DS1862B+
BrandMaxim
TWD205
Each (In a Tube of 10)
units
- Closed Loop - - 5 x 5mm - - 5mm +5.5V +2.9V 5mm - +2.9 → +5.5 V
RS Stock No. 797-9691
Mfr. Part No.DS1862B+
BrandMaxim
TWD161
Each
units
- Closed Loop - - 5 x 5mm - - 5mm +5.5V +2.9V 5mm - +2.9 → +5.5 V
RS Stock No. 160-2890
Mfr. Part No.ADN2848ACPZ-32
TWD359
Each (In a Tray of 490)
units
N Type Closed Loop 100mA 80mA 5.1 x 5.1 x 0.75mm - - 5.1mm 3.6V 3V 5.1mm ADN28 3 → 3.6 V
RS Stock No. 877-9105
Mfr. Part No.ADN2841ACPZ-32
TWD1,072
Each
units
N Type Closed Loop 100mA 80mA 5.1 x 5.1 x 0.75mm - - 5.1mm 5.5V 4.5V 5.1mm ADN28 4.5 → 5.5 V
RS Stock No. 666-5640
Mfr. Part No.LDP-V 40-70
BrandPicolas
TWD10,570
Each
units
- - - - 32 x 15mm - 3 32mm - - 15mm - -
RS Stock No. 666-5647
Mfr. Part No.LDP-V 10-70
BrandPicolas
TWD10,430
Each
units
- - - - 32 x 15mm - 3 32mm - - 15mm - -
RS Stock No. 877-9117
Mfr. Part No.ADN2848ACPZ-32
TWD311
Each
units
N Type Closed Loop 100mA 80mA 5.1 x 5.1 x 0.75mm - - 5.1mm 3.6V 3V 5.1mm ADN28 3 → 3.6 V