DEI DLD-100B Datasheet
•
Output Current <5A To 40A
•
Repetition Frequency To 1 MHz
•
Variable Pulse Width From 12ns
to 1µs
•
Economical OEM Module
DLD-100B
PULSED LASER
DIODE DRIVER
The DLD-100B is a high speed, high current pulsed
laser diode driver designed to operate at 5A to 40A
output current with continuously variable pulse
widths from 12ns to 1µs (Option A), and frequencies
up to 1MHz.
The DLD-100B is available in two models. Option A
is optimized for fast rise and fall times and a
narrower minimum pulse width than Option B.
Option B is optimized for maximum duty cycle and
efficiency, with a slower rise time and longer
minimum pulse width than Option A. (See specific
performance data on the following pages.)
The output pulse is launched on low inductance
pads. The laser diode can be mounted directly on
the driver, or connected via a low inductance
stripline interconnect.
The driver is supplied mounted on a 1/4” aluminum
heat spreader to provide the cooling needed for the
switching transistor, and to simplify mounting or
installation of the driver.
The Pulse Of The Future
Directed Energy, Inc.
• 2401 Research Blvd., Suite 108 • Fort Collins, CO 80526
TEL: 970-493-1901 • FAX: 970-493-1903 • EMAIL: deiinfo@directedenergy.com • INTERNET: www.directedenergy.com
DLD-100B Option A
20A Output, 12ns Pulse W i dth
DLD-100B Option A
30A Output, 600ns Pulse W i dth
SPECIFICATIONS
PARAMETER
DLD-100B Option A
DLD-100B Option B
Peak Output Current 30A, controlled by input high
voltage amplitude
40A, controlled by input high
voltage amplitude
Minimum Pulse Width (Typical)
12ns (12E-9S) 15ns (15E-9S)
Maximum Pulse Width at 5% Droop
1µs (1E-6S)
600ns (6E-7S)
Pulse Rise Time (10% to 90%) (Typical)
11ns (11E-9S)
18ns (18E-9S)
PRF (Pulse Recurrence Frequency), CW Single Shot to 1MHz, limited by maximum average current, con-
trolled by input trigger frequency (see tables below)
Gate (Trigger) In
+5V/50
Ω
Output pulse width and frequency follow gate’s width
and frequency
Support Power +12VDC to +15VDC at 60mA typical
DC HV Input 150V Maximum 60V Maximum
Throughput (Propagation) Delay <40ns, typically 35ns
MECHANICAL
Size 70mm (2.75”) W x 100mm (3.9”) L
ALL
SPECIFICATIONS MEASURED INTO A SHORTED OUTPUT
.
S
PECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE
.
Technical Description
The DLD-100B is an open-frame, OEM module
designed for integration into the user‘s equipment.
The driver requires +12 to +15VDC support
power, a high voltage DC input (150VDC maximum for Option A, 60VDC maximum for Option
B), and a +5V gate signal. The amplitude of the
high voltage DC supply controls the amplitude of
the output current pulse. The output pulse width
and frequency follow the input gate’s width and
frequency.
To minimize cost, the driver is designed so that
the laser diode is floating on the voltage of the
drain of the output transistor.
The diode must be
electrically isolated from earth (chassis)
ground.
The cathode (-) connects to W1, and the
anode (+) connects to W2.
Gate
Drive
Circuitry
Control
Gate
(P1 - 6)
+12V
(P1 - 4)
+ High Voltage
Input
(P1 - 2)
Energy Sorage
Capacitors
Impedance
Matching Resistor
Laser Diode
(Floating)
Cathode (-) = W1
Anode (+) = W2
DE150-201N09
Power
MOSFET
DLD-100B Simplified Block Diagram
Maximum Duty Cycle Typical Input Voltage (VDC)
Option A Option B Option A Option B
5 0.09 0.40 25 6
10 0.025 0.1 50 12
15 0.01 0.04 75 20
20 0.006 0.024 100 25
25 0.0035 0.015 125 32
30 0.002 0.01 150 40
35 ——– 0.008 ——– 47
40 ——– 0.005 ——– 60
Output
Current (A)
Loading...