28
LFI-4500 ELECTRICAL SPECIFICATIONS
Model Number
LFI-4502
LFI-4505
LFI-4510
LFI-4532
LFI-4565
Drive Current Output
Output Current Range
0 - 200 mA
0 - 500 mA
0 - 1 Amp
0 - 3.25 Amps
0 - 6.5 Amps
Compliance Voltage
> 4.3 V
> 4 V
> 3.7 V
> 3.6 V
> 3.3 V
Temperature Coefficient
< 100 ppm/
°
C
< 100 ppm/
°
C
< 100 ppm/
°
C
< 100 ppm/
°
C
< 100 ppm/
°
C
Short Term Stability (1 hr)
< 20 ppm
< 20 ppm
< 20 ppm
< 20 ppm
< 20 ppm
Long Term Stability (24 hrs.)
< 50 ppm
< 50 ppm
< 50 ppm
< 50 ppm
< 50 ppm
Noise and Ripple (rms)
High Bandwidth Mode
< 5
µ
A
< 8
µ
A
< 10
µ
A
< 15
µ
A
< 20
µ
A
CW Mode
Œ
< 1
µ
A
< 1
µ
A
< 3
µ
A
< 5
µ
A
< 5
µ
A
Photodiode Feedback
PDI Range 1 (20 mA max.)
•
50 - 2000
µ
A
50 - 2000
µ
A
50 - 2000
µ
A
50 - 2000
µ
A
50 - 2000
µ
A
PDI Range 2
15 - 200
µ
A
15 - 200
µ
A
15 - 200
µ
A
15 - 200
µ
A
15 - 200
µ
A
Max. forward PD Bias voltage
0.200 V
0.200 V
0.200 V
0.200 V
0.200 V
Const. Power Output Stability
< 0.02 %
< 0.02 %
< 0.02 %
< 0.02 %
< 0.02 %
External Analog Modulation
Input Impedance (0-10 V)
60 k
Ω
60 k
Ω
60 k
Ω
60 k
Ω
60 k
Ω
Transfer Function 1
40 mA/V
100 mA/V
200 mA/V
650 mA/V
1300 mA/V
Transfer Function 2
4 mA/V
10 mA/V
20 mA/V
65 mA/V
130 mA/V
Bandwidth (3 dB)
Ž
High Bandwidth
DC -200 kHz
DC - 200 kHz
DC - 200 kHz
DC - 200 kHz
DC - 50 kHz
CW Mode
Œ
DC - 32 Hz
DC - 32 Hz
DC - 32 Hz
DC - 32 Hz
DC - 32 Hz
Display
PDI Range 1
•
0 - 1999
µ
A
0 - 1999
µ
A
0 - 1999
µ
A
0 - 1999
µ
A
0 - 1999
µ
A
PDI Range 2
0 - 199.9
µ
A
0 - 199.9
µ
A
0 - 199.9
µ
A
0 - 199.9
µ
A
0 - 199.9
µ
A
Laser Diode Current
0 - 199.9 mA
0 - 500 mA
0 - 1.000 A
0 - 3.25 A
0 - 6.50 A
LD Limit Monitor & Limit Setpoint
0 - 199.9 mA
0 - 500 mA
0 - 1.000 A
0 - 3.25 A
0 - 6.50 A
LD forward voltage
9.99 V max
9.99 V max
9.99 V max
9.99 V max
9.99 V max
Œ
Measured with maximum noise filtering on configuration switch.
•
The maximum photodiode range can be increased to 20 mA. Set the unit to the 2000
µ
A range and place a 10
Ω
resistor across pins 5 & 6 on the output connector.
Ž
Modulation bandwidth is dependent on limit current setting and output load impedance. Bandwidth specifications are measured at maximum limit current setting and half maximum output current with a laser
diode load. Simulated laser diode loads may produce varied results