Compact, Economical Module Output

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Compact, Economical Module Output

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PCO-7120 PULSED LASER DIODE DRIVER MODULE
Compact, Economical Module Output <9ns Rise Time Variable Pulse Width From 12ns >1µs Repetition Frequency 1MHz Diodes Mounted Directly PCO-7120, Eliminating Need Interconnect Cables Striplines Pulsed Current Monitor Output
PCO-7120 compact, economical laser diode driver module designed provide extremely fast, high current pulses drive laser diodes range finder, LIDAR, atmospheric communications other applications requiring high current, nanosecond pulses. offers variable output current from 50A, with continuously variable pulse widths from 12ns >1µs frequencies 1MHz. Mounting pads provided mount laser diode directly driver, eliminating need interconnect cables striplines. four-hole mounting pattern accepts TO-18, TO5, TO-52, 5.6MM, packages, well other packages similar dimensions lead spacing, mounted perpendicular driver circuit board. facilitate different packages mounting preferences, there solder pads board accept various laser diode packages mounted axis driver. Furthermore, diode connected remotely from driver using low-impedance stripline interconnection between mounting pads leads laser diode. current monitor output viewed with oscilloscope, providing straight-forward means observe diode current waveform real-time. PCO-7120 driver provides high-speed performance, variable pulse width, current frequency, robust design, flexible mounting configurations ability drive wide range laser diodes small package. These features provide user with economical module with flexibility readily designed into wide range products. Technical Overview PCO-7120 uses IXYS-RF DE-150 Series MOSFET driven with IXYS-RF IXDD415SI high speed gate drive main switching element. Unlike avalanche transistor drivers, power MOSFET PCO-7120 operated breakdown, instead controlled gate with highspeed gate drive circuit. This design provides high degree reliability, excellent switching performance, variable pulse width superior amplitude temporal stability over broad operating temperature range. driver requires three user-supplied inputs: gate
put, +15VDC support power, high voltage input (+100V maximum). output pulse follows input gate width frequency. output current depends upon available charge driver's energy storage network. This charge directly proportional voltage high voltage power supply. Therefore output current amplitude PCO-7120 controlled varying input high voltage amplitude. output current varied over large range with little variation pulse width. minimize cost, driver designed that laser diode floating voltage drain output transistor. diode must electrically isolated from earth (chassis) ground. cathode connects "NEG" terminal anode connects "POS" terminal diode connected remotely using low-impedance stripline interconnection between mounting pads leads laser diode. High speed clamp diodes incorporated into output network protect laser diode against reverse voltage conditions. driver supplied mounted 1/4" aluminum heat spreader provide cooling needed switching transistor, simplify mounting installation driver.
Ordering Information: PCO-7120 provided aluminum heat spreader. Mating input connector housing) supplied with driver. PCO-7120 sold without laser diode. Laser diode shown product photo illustrative purposes only. Optional Accessories: -9145: Current Monitor Connector Male Coaxial Cable connect current monitor oscilloscope. -9245 Male Plug Coaxial Cable Gate Input. 1820-0030 -Impedance Stripline remotely connect PCO-7120 laser diode.
DIRECTED ENERGY INCORPORATED
SPECIFICATIONS PARAMETER Output Current Minimum Pulse Width (Typical) Maximum Pulse Width with Pulse Droop Pulse Rise Time (10% 90%) (Typical) (Pulse Recurrence Frequency) Gate (Trigger) Support Power Input Throughput (Propagation) Delay MECHANICAL Size 50A, controlled input high voltage amplitude 12ns (12E-9S) (1E-6S) 50A, 10µs (10E-6S) (8E-9S) Single Shot 1MHz, limited maximum average current, controlled input gate frequency (see table graph below) into Output pulse width freq. follow input gate width freq. +12VDC +15VDC 60mA typical 100V, Output current amplitude controlled input voltage amplitude <40ns, typically 36ns
Driver Only: 51mm (2.00") 82.5mm (3.25") 13mm (0.51") Driver Heatsink: 51mm (2.00") 103mm (4.06") 19.3mm (0.76") Weight Driver Only: (1.22oz) Driver Heatsink: 128g (4.5oz) Operating Temperature -20C +55C SPECIFICATIONS MEASURED INTO SHORTED OUTPUT. SPECIFICATIONS SUBJECT CHANGE WITHOUT NOTICE
Pulse Width Pulse Rate
1000
Output Current
Maximum Duty Cycle 0.65 0.17 0.075 0.045 0.028 0.019 0.011 0.007
Typical Input (VDC)
Pulse Rate (kHz)
1000
Pulse Width (ns)
200ns Pulse Width, Output
12ns Pulse Width, Output
Pulse Width, Output
#9200-0264 2003 Directed Energy, Inc.
Directed Energy, Inc. IXYS Company 2401 Research Blvd., Suite Fort Collins, 80526 970-493- 1901 Fax: 970-493-190 Email: deiinfo@directedenergy.com Web: http://www.directedenergy.com

Compact, Economical Module Output

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