Compact PCB QCW Laser Diode Driver Power Module 781
■ IDEAL FOR HIGH POWER LASER DIODES
■ COMPLIANCE VOLTAGE FROM 1.6 TO 2.0VDC
■ COMPACT PCB DESIGN
■ ADJUSTABLE PULSWIDTH FROM 2ms TO 8ms
■ 3VDC INPUT POWER
The MODEL 781 is a single channel, non-isolated compact QCW laser diode driver.
The high efficiancy design will drive diodes up to 2V with 3V input.
Current amplitude is trimpot adjustable and the output pulswidth can be set equal to the input pulswidth, fixed at 8ms, and can be truncated by an external detector signal input or by a detector in the laser package, if present (jumper selectable)
Threshold ajusts via PCB mount pot (R28) and a test point is provided to set the threshold.
Jumper (J8) selects source to truncate pulse: (1) external signal via coax or (2) photodiode inside laser package.