PCO-7121 Laser Diode Driver Module
Precision Pulse Control
The PCO-7121 is a compact and economical OEM pulsedcurrent laser diode driver module. It is designed to provide extremely fast high-current pulses for driving laser diodes in range finder, LIDAR, atmospheric communications and other applications requiring high-current nanosecond pulses. This module offers variable output current from 5 A to 50 A with pulse widths from 22 ns to 1 µs at frequencies up to 1 MHz.
Laser Diode Connection
Mounting pads are provided to mount the laser diode directly to the driver. The four-hole mounting pattern accepts TO-18, TO-5, TO-52, 5.6 mm, and 9 mm packages. To facilitate various packages and mounting preferences, two solder pads at the end of the board accept various laser diode packages mounted on-axis to the driver. Alternately, low-inductance strip line cable can be used to connect the board to a remotely-located diode.
System Operation
The DC high voltage and +15 VDC power supplies are connected via J1, a six-pin male header connector, using the supplied control cable. Pulse current depends on HV supply voltage over the range of 0 V to +95 V (maximum). Externally-generated pulses are fed to the gate input via either J1 or SMB connector. The width and repetition rate of the gate pulses directly set the timing of the output pulses. A current monitor output is provided to observe the diode current in real time with an oscilloscope. The driver is supplied mounted on a ½” thick aluminum heat spreader to provide the cooling needed and to simplify mounting or installation of the driver.
Ordering Information
PCO-7121 Module
Included Control Cable 6100-0137
Optional Current Monitor Cable PCA-9145
Pulse Amplitude
Output current range
5 A to 50 A
Pulse width
22 ns to 1000 ns
Rise time
≤ 12 ns *2
Fall time
≤ 10 ns
Frequency
Single shot to 1 MHz
Throughput delay
28 ns typical
Housekeeping power required
15 V ± 250 mV, 80 mA
High voltage input voltage
0 V to 95 VDC
High voltage input power
≤ 12 W (typical) *1
Gate
Gate input
+5 V
Gate pulse width
10 ns to 1000 ns
Termination impedance
50 Ω
Gate Connector
SMB or J1 Pin 2
Input connector
Gate input
J1 Pin 2
+15 VDC input
J1 Pin 4
High voltage input
J1 Pin 6
Return
J1 Pins 1, 3, 5
Current monitor
Current monitor scaling
20 A/V typical
Current monitor termination
50 Ω
Current monitor +
J2 Pin 1
Current monitor –
J2 Pin 3
Output connector D3
Four-hole mounting pattern accepts TO-18, TO-5, TO-52, 5.6mm, and 9 mm packages
General
Size (LxWxH)
101.6 mm x 50.8 mm x 27 mm
Weight (approximate)
100 g
Mounting hole spacing
92.1 mm x 43.2 mm
Hole diameter
3.8 mm
Operating Temperature
0 °C to 35 °C
Cooling
Air cooled
Notes
*1 Driving a shorted load at maximum SOA level.
*2 For output currents above 20 A.
All specifications are measured after the module is thermally stabilized (30 minutes), driving a shorted load and using the current monitor connection.
Specifications are subject to change without notice.
Warranty: One year parts and labor on defects in materials and workmanship.
描述 [描述] PCO-7121是一个紧凑和经济的OEM脉冲电流激光二极管驱动模块。