The D100 is a constant-current pulsed laser driver capable of driving bar laser stacks or VCSEL arrays up to 250 amps and 30 volts. Current and pulse width can be set by on-board trimpots or user-provided signals. The D100 provides user-settable peak current and pulse width limiting circuits for laser protection, and thermal/SOAR protections for the onboard power semiconductors.
The D100-9 is a full evaluation kit, including power supplies and cables.
FUNCTION | High power pulsed laser driver |
TRIGGER INPUT |
CMOS/TTL PULSE input enables laser current Threshold +1 volts typ, protected to ± 20 volts Nom 1K to ground, optional 50 Ω termination |
TIMING MODES |
A) Laser drive follows PULSE input B) Laser drive follows PULSE input with trimpot pulse width limit C) PULSE input rising edge triggers trimpot-set pulse width Pulse width/limit adjustable with trimpot from 50 µs to 1000 µs |
LASER OUTPUT |
Constant-current drive Trimpot or user adjustable 10 to 250 amps Compliance up to 30 volts at 250 amps, 750 µs with 48 volt power supply |
RISE/FALL TIMES | 10 µs typ |
MAX POWER DISSIPATION |
12 watts free air 30 watts with 500 LFPM air flow 60 watts with optional heat sink |
TEMPERATURE RANGE |
Operating, 0 to 60°C; to -40°C with restrictions Non-operating, -40 to 80°C |
INTERNAL CONTROLS |
DIPswitch: Laser ON/OFF Current setpoint POT / External Timing modes A, B, C ISET: current set / limit trimpot, 10-250 amps PW: pulse width set / limit trimpot, 50-1000 µs |
POWER |
User-furnished +20 to +48 volts DC Reverse and startup-surge protected HV Present LED and bleeder provided |
CONNECTORS |
V+, GND, LASER A, LASER K: 0.25" male fastons TRIG : SMB trigger input, CMOS/TTL IMON : SMB current monitor output, 5 volts at 250 amps VLMON : SMB laser anode – cathode voltage output, VAK / 5 ILK : 3-pin laser drive interlock 20-pin ribbon cable connector provides full control and supervision |
LED INDICATORS | Orange PWR Green OK Blue TRIG |
PACKAGING |
3.5" x 4.2" printed circuit board 2" nom height |
D100-1: compact 250A laser driver
D100-9: compact 250A laser driver evaluation kit (includes: D100-1, J24 24 volt power supply, J53-1 SMB to BNC cable, and T567 mounting flange)